Hike with a Geologist at Barnes Butte

View up to Barnes Butte from the trail

At first glance, a visit to Barnes Butte in Prineville looks a lot like much of central Oregonโ€”a landscape of sage brush, juniper, and volcanic rimrock. It is difficult to imagine that Barnes Butte is, in fact, the inside edge of a massive supervolcano thatโ€”though now extinctโ€”erupted more than 240 cubic miles of material forming a caldera roughly 29.5 million years ago.

Approximately 25 miles by 17 miles in size, the oblong-shaped Crooked River Caldera reaches from Smith Rock State Park in Terrebonne east to the Ochoco Reservoir and south to the Prineville Reservoir and Powell Buttes. For something so large, it might seem surprising that it wasnโ€™t until 2005 that a couple of scientists first noticed its presence.

However, standing in the parking lot of Barnes Butte City Park with Carrie Gordon, a retired geologist, and willing hiking partner, it became obvious why such a large geological structure went unnoticed for so long. Seriously, what volcano?

The Hike

  • Trailhead: Barnes Butte Trailhead
  • Distance: Varies. (2.7 miles w/565 feet elevation to top)
  • Details: Large parking area; no pass required; No restrooms (port-a-potty may be available)  

Introductions

It was a warm early fall day when I met Carrie in the parking lot of Barnes Butte City Park. Wildfire smoke created a haze across the skyline, but you could still just make out most of its features, including the Cascade Volcanoes in the distance.

Carrie, a small energetic woman, was all smiles as we gathered at her vehicle for introductions.

โ€œI worked 40 years for the Forest Service,โ€ Carrie said, โ€œAs a forest geologist.โ€

She explained that her job mainly entailed keeping track of material sources, like gravel.

โ€œIt is one of those careers that are just a hoot and a half,โ€ she exclaimed.

Yes, this is Carrie. And we were just getting started.

Tall Tales

I asked Carrie to tell me about where we were standing.  After all, I couldnโ€™t see any so-called โ€œvolcano.โ€ She quickly pulled out her geology maps from her vehicle to orient me to the space and began to weave the tale.

โ€œJason McClaughry and Mark Ferns from DOGAMI started mapping in 2005,โ€ she said. Originally, โ€œthey were supposed to map a 7.5-minute quadrangle,โ€ Carrie continued.

Plans quickly changed, however. McClaughry and Ferns were tasked with finding water resources for Prineville, but while mapping, certain geological features started reshaping their goals.  By the end of the project, they had mapped over 903m2โ€”and reshaped our understanding of central Oregon geology.   

โ€œThe cool thing about geology,โ€ Carrie began, โ€œThe rocks donโ€™t change but the story changes. We add to our body of knowledge, and we can go, โ€˜oh okayโ€™โ€ฆโ€

Anatomy of a Calderas

Perhaps the most important change to the story that McClaughry and Ferns brought to light was the chapter on the Crooked River Caldera. 

โ€œCalderas are a little sneaky,โ€ said Carrie.

Unlike, the very conspicuous Cascade peaks, โ€œseeingโ€ a caldera requires reading the landscape very differently. They are not peaks, rather, Calderas are mostly depressions.

Carrie explained: โ€œBasic caldera formation is you have magma that is coming up to the Earthโ€™s surface to the point you get a collapse.โ€

In the case of the Crooked River Caldera, these eruptions took place from about 29.7 to 27.5 million years ago. These were massive eruptions of rhyolitic lava, including volcanic tuff, that created a void below the volcano that eventually collapsed creating a 26 by 17-mile depression.

In addition, a ring fracture develops during caldera formationโ€”allowing rhyolitic lava to intrude and bulge up along the side of the collapse.

Evidence of the ring fracture of the Crooked River Caldera can be seen at places like the Prineville Reservoir and Peter Ogden Wayside, where older rock that pre-dates the eruptions is tipping toward the interior of the caldera.

In addition, and perhaps even more obvious, rhyolitic domes can be observed marking the Crooked River Caldera Boundary. Carrie pointed to eachโ€”Powell Butte, Gray Butte, Grizzly Mountain, and, of course, Barnes Butte.

โ€œThis is the evidence that they [McClaughry and Ferns] found,โ€ Carrie stated.

Looking out toward Gray Butte and Grizzly Peak (photo credit: Carrie Gordon)

Tuffs

I was beginning to see itโ€”with many of the peaks visible from the parking lotโ€”the caldera was taking form when Carrie whipped out another visual aid.

โ€œI brought my box of rocks too,โ€ she proclaimed.

Carrie pulled out two rocks with large flecks of material embedded within themโ€”tuffs, I would soon find out.

โ€œThe cool thing about tuffs is they tell you about volcanic activity,โ€ said Carrie. Tuffs are commonly associated with large violent eruptions as you see in caldera-forming.

โ€œTuffs are formed from bits and pieces of pumice and bits of rocks as it comes up through, in our case accreted terranes,โ€ during an eruption, said Carrie.  โ€œIt is a mishmash of stuff.โ€

Pulverized stuff mostly, like ash, but also some solid flecks of rock, like pale gray pumice, embedded in the matrixโ€”that is tuff. 

โ€œIt sparkles at you due to the crystal fraction in the ash,โ€ described Carrie holding up two samples, her eyes sparkling more than the rocks.

Tuffs are also lighter than other forms of igneous rock, like other forms of rhyolite and basalt, as they are full of air pockets. She handed me one of the tuffs to weigh in my hand and basalt in the otherโ€”yep, I could feel the difference.

If you ever visited Smith Rock State Park, you have seen tuff. It is the tuffs that people mostly climb on. 

โ€œEasy to pound in your pins,โ€ Carrie remarked.

Tuffs from the Crooked River Caldera

Geochemistry and Cooling

Carrie had other rock samples in her box. She pulled out a shiny, black rock called obsidian, and a striped rock called banded rhyolite.

โ€œThese are all rhyolite geochemistry,โ€ said Carrie. โ€œRhyolite has higher silica content than basalt and it tends to be blocky when it chills.โ€

However, the similarities end there.

โ€œThe thing about rhyolite is it comes in so many different forms.โ€

Tuff is the result of violent eruptions that pulverize rock, while obsidian and banded rhyolite are both formed as lava flows.

Obsidian is glassy because it cooled quickly enough that crystals were unable to form. Banded rhyolite, on the other hand, forms crystals that capture the layering that often occurs as lava flows.

โ€œThis is what makes up Grizzly and Gray Butteโ€ฆโ€ Carrie added, holding up the banded rhyolite.

She continued, holding up the two tuffs she had pulled out originally.

Tuffs to the left and obsidian to the right

โ€œThese are the same rock,โ€ she explained. Only one had undergone a form of hydrothermal alteration, turning it โ€œpistachio green,โ€ while the other more โ€œbeigyโ€ rock had not.

โ€œAnd that is tuff,โ€ Carrie concluded, putting her rocks back in her box.

She also mentioned graniteโ€”another form of rhyolite formed by a slow cooling process under the Earthโ€™s surface.

โ€œIt is the same composition as obsidian,โ€ Carrie reiterated, but โ€œburied a long time.โ€

Just one more reminder to not take your rhyolite for “granite” (pun intended).

More samples from Carrie’s box of rocks

Off to the Races

At this point, we had been chatting for about 20 minutes and decided it was about time to hit the trail. The trail system at Barnes Butte City Park is rather extensive, but we kept it simple and headed up the Jockey Trail that goes along the base of Barnes Butteโ€”an old trail that the landowners used to run horses on. 

As we started off on the rocky, dusty path, Carrie told me about the other trails that run through the park.

Apparently, much of the land was an old ranch. In addition to hiking the old horse track, there are also a lot of old cattle trails that are now hiking/biking trails that run through old grazing fields and around what used to be an irrigation pond.

Before that, there was even mercury mined on the Butte for a short time.

โ€œSee the main draw,โ€ she said looking up toward the butte, โ€œ there is an old BLM road that goes up to where the mercury mines in the 1940s areโ€ฆ. [The mercury mine is] courtesy of the caldera and volcanism.โ€

Mercury, lead, and gold, as well as Oregonโ€™s state rock, the thunder eggs, rely on silica-rich waters to concentrate and form these minerals.

โ€œYou can take a footpath to the top of the butte,โ€ Carrie added, โ€œthere are a lot of options.โ€

Rivers in the Sky

Soon we arrived at an embankment, apparently part of the old irrigation pond, when Carrie unexpectedly began hiking off the trail up the hill.

โ€œWhat are you seeing?โ€ she asked me, as I followed her onto the side of the embankment.

โ€œLooks like some kind of layer of fine sandy stuffโ€ฆโ€ I responded hesitantly, โ€œOh, and the rocks are rounded.โ€

โ€œYou got it!โ€ she proclaimed with a smile. โ€œSo, what we are seeing is lakebed and riverbed sands and cobble.โ€

Then turning, she pointed out to a suite of rimrock, lava plateaus.

โ€œIf you look across at our plateaus,โ€ she explained, โ€œyou are looking at the old valley floors!โ€

She explained that each lava plateau was the result of an individual basalt eruption event (part of the Deschutes formation) that filled the valley at that point in timeโ€”the oldest being 7 million years old and the youngest only 3 million years.

Over time, the land area surrounding the lava-filled river channels eroded. As a result, what were once lowlands and river channels, are now basalt plateaus.

โ€œThis is inverted topography,โ€ said Carrieโ€”what was low is now high.

โ€œWhat we are looking at here is the infill,โ€ said Carrie looking back to the sand and cobbles, โ€œthe eroded remains of a valley bottom.โ€

Looking out at the lava plateaus

Perspectives

Carrie and I continue wrapping up and around the hill of infill where we could get a better view of the young lava flows and the much older rhyolite buttes of the Crooked River Caldera.

As we hiked, we passed by some bright yellow rabbitbrush still in bloom. Carrie told me how she uses it to make cloth dye; and we briefly got on a tangent regarding natural dyesโ€”a side passion of Carrieโ€™s.

โ€œRabbitbrush makes the best dye!โ€ she proclaimed.

Speaking of color, Carrie pointed out a pale green patch of ground in the distanceโ€”to the left of Barnes Butte from where we stood.

She told me how she used to drive by and wondered at the green colorโ€”โ€œit just stayed pistachio greenโ€ all year long. Eventually, she realized it was tuff.

Though the rock that makes up Barnes butte is a solid rhyolite dome, tuffs can be observed around Barnes Butte as a few outcroppings, and as what geologists call โ€œfloatโ€โ€”rocks that have moved from their place of origin.

Carrie pointed out a few outcroppings of Barnes Butte tuff that lay just in front of usโ€”โ€œthe high points,โ€ she noted. 

A Step Back

Carrie also addressed the hills that lay on the far horizon, outside the Calderaโ€™s boundary.

โ€œMost of what we are looking at on the far horizon are Clarno andesites,โ€  said Carrie looking eastโ€”volcanic rocks from a period preceding the Crooked River Caldera eruptions.

Of course, mixed up in all of it, is even older rocks. Accreted terranesโ€”jumbles of earth materials that become permanently attached to a land mass of a completely different originโ€”make up the basement rocks of Oregon.

Carrie told me about how older maps used to show a pocket of limestone in the area. It was โ€œweird” at first, but as Oregon’s geological story unfolded it became apparent that the limestone was from an accreted terrane. The limestone would have come from some distant shallow sea before it was added to the continent 100 to 400 million years ago by the forces of plate tectonics.

Only later it became part of the Crooked River Caldera. The past, literally, resurfacing by way of the Calderaโ€™s eruption.

Flash Forward to Newberry

Carrie turned to face the interior of the Caldera again. There was still one more point in time to discuss.

In addition to the lava flows that make up many of the plateaus around Prineville, an even younger period of volcanic eruptions graced the Caldera in geologically recent timesโ€”the Newberry Volcanics.

Newberry has been erupting for the last 400,000 years and remains active today. Its most recent eruption was 1,300 years ago.

โ€œDarn it all!โ€ she exclaimed. โ€œI was hoping it would be clearerโ€ฆIt [Newberry] is a big shield volcano,โ€ said Carrie, โ€œIt barely shows over the horizon.โ€

Interestingly, some of Newberryโ€™s flows reached into the Crooked River Caldera.

Carrie described one of these flows:

โ€œThat basalt flow was going down the ancestral Deschutes River, near Oโ€™Neil Junction, where it dropped into the Crooked River drainage, headed to Smith Rock. Here it smacked into Smith Rock pushing the Crooked River over to its present course.โ€

Those who have visited Smith Rock State Park and hiked any of its trails know this basalt flow as the calf-burning, heart-pumping climb out of the Crooked River Canyon, and back to the parking lot.

Next time you visit, โ€œLook at what is at the bottom of the basalt flowโ€ฆโ€ advised Carrie. โ€œThere is river cobble there.โ€

Whether it is the Newberry basalt flow, or any one of the other flows that passed through, each time the Crooked River is displaced.

โ€œIt was doing its level best to be a valley bottom and these stupid basalt flows come in,โ€ Carrie described in her own colorful way. โ€œThe river is like โ€˜okay, I will find another routeโ€™.โ€

Ashes to Ashes

At this point, Carrie and I resumed our walk along the old racetrack and took a left, wrapping around to the other side of the embankment facing Barnes Butte. Song birds flitted by as we walked. 

โ€œOne of the best-kept secrets,โ€ Carrie shared, โ€œwe have a nesting osprey pair here.โ€

As we meandered around the bend, Carrie pointed out what looked like really fine sand.

โ€œThis is volcanic ash,โ€ she explained. โ€œWhen Mazama erupted, we got a foot and a half of fine ash.โ€

Mount Mazamaโ€”a massive stratovolcano blew it’s top 7,700 years ago, forming a smaller caldera that has since filled with water forming Crater Lake.

Carrie continued: โ€œOne of the things that happened is the winds will blow ash and it will catch on the leeward side of the hill,โ€ she explained.

Carrie then proceeded to scoop up a handful of the ash and show how me how to look at it with a hand lensโ€”white pumice fragments and black hornblende or magnetite could be made out among the grains. Of course, her favorite part, and mine too, was to look at the ash in the sunlight. 

โ€œThe best thing about volcanic ash is it winks at you,โ€ said Carrie. โ€œIt is the reflection of the crystal fragment of volcanic ash.โ€

You donโ€™t get that same winking with sand, explained Carrie. Only ash has the ability to sparkle.

Volcanic ash capable of winking in the sun

Blowing in the Wind

The ash is also important to the soil of the area. Loessโ€”windblown sedimentโ€”is rich in many minerals and provides the starting material from which soil forms.

Of course, loess is not the only input into the area.

โ€œDonโ€™t forget we are in this pocket here,โ€ reminded Carrie, โ€œWe had all the river systems and lake deposits that are actual sand and gravel.โ€

Alluviumโ€”water-transported sedimentโ€”also contributes to soil formation, even in places you might not expect. Powell Butte, for example, is mostly covered with river sand.

โ€œSomething [i.e., a river] was moving across there at one time,โ€ said Carrie.

Now, these old river channels are a ready source of water for the City of Prineville. When the City looked for places to tap for wells, surprisingly the best places were on the bottoms of the lava flows that once were river channels.

โ€œThis was the thing that blew me away,โ€ Carrie smiled. 

Barnes Butte

Carrie and I reached another junction and took the trail heading up Barnes Butte. As we climbed, we passed by several large hunks of reddish-brown rock. Unlike the rocks down below, these were not round, but jagged.

โ€œAll the hunks of rock are rhyolite,โ€ said Carrie.

I asked Carrie how she knew it was rhyolite, aside from knowing where we are at. Carrie picked up a piece of the rock and knocked it against another.

โ€œIt sounds glassy,โ€ she explained. โ€œPart is how it sounds, and if you can heft it.”

According to Carrie, compared to basalt, another prolific volcanic rock, rhyolite is not as heavy. So if you find a gray rock that is relatively lighter and glassier, it could be rhyolite.

Juniper

As we continued up the rocky hill Carrie, I noticed a juniper with its roots clinging to a juniper tree.

Off-hand I asked Carrie, โ€œDo junipers like rhyolite?โ€

Surprisingly, she answered in the affirmative.

“Thatโ€™s a cool story!โ€ Carrie proclaimed. โ€œWestern Juniper has become invasive.โ€

Though western juniper is a species native to central Oregon, it has been creeping into areas that it normally wouldnโ€™t. Fire exclusion, grazing pressure, and climate variability have all been cited as reasons for the spread of the waster juniper.

โ€œAnd it uses a lot of water,โ€ Carrie added, a highly valued resource in the area.

โ€œThis is all rangeland,โ€ Carrie explained, it should have โ€œmore grasses and sagebrush component.โ€

In short, western juniper shouldnโ€™t be so prevalent.

Instead, according to Carrie, western juniper is a first colonizer. Its range historically was limited to rocky areasโ€”like our rock-grasping juniper.

โ€œThis is a rhyolite knob,โ€ concluded Carrie, โ€œand this is a very well-behaved juniper.โ€

Well-behaved journal growing from rhyolite rocks

Lichen

We continued up the Barnes Butte for a stretch but then decided to turn around. I was curious about finding tuff, so Carrie suggested we check the lower trail.

As we walked, I started noticing all the lichen and moss growing on the rhyolite and asked Carrie about it.

โ€œAre they picky?โ€ I asked, wondering if only certain lichen grow on certain kinds of rock.

Carrie didnโ€™t think so, but instead mentioned how they might be used to age-date rocks.

Estimates of the age of a rock can be estimated based on the growth and size of the lichen that grows on it.

โ€œHas the rock been sitting in place?โ€ Carrie asked rhetorically. โ€œThen you can get some age dates.โ€

Additionally, some plants do seem to prefer certain rock types. During the mapping of Mill Creekโ€”an area adjacent to the Crooked River Calderaโ€”McClaughry and Ferns found that, following a fire, much of the rhyolitic rocks were being colonized with manzanita. Manzanita soon became an indicator of rhyolite geology during the mapping.

Lichen growing on rhyolite

Recommendations

As we continued downhill, Carrie spotted some of the green tuff as float (loose rock) along the pathwayโ€”more evidence that we were, in fact, in a Caldera.

As we walked, Carrie offered me a lot of recommendationsโ€”video recommendations, places to visit, and hikes to take. She had a real knack for suggesting hikes I hadnโ€™t been on.

But perhaps the strongest suggestion she has was to check out some of the Crooked River Caldera sites.

One of these places was Pilot Butte. (Yep, I hadnโ€™t hiked it yet.)

You can see the Cascade Volcanoes from Pilot Butteโ€”โ€ a lovely white line of volcanoes,โ€ as Carrie put it, but she wanted to make sure I didnโ€™t miss the main event. 

โ€œIt [the Crooked River Caldera] is one huge volcano compared to the pretty pristine cones,โ€ she added.

Other places she recommended for observing attributes of the Caldera include the Prineville Reservoir, Peter Skene Ogden State Park, Ochoco Reservoir, and, of course, Smith Rock.

I recommend hiking with Carrie. She is a hoot-and-a-half.


Carrie Gordon is a retired forest geologist. She was the Forest Geologist on the Ochoco National Forest and Crooked River National Grassland, U.S. Forest Service, headquartered in Prineville, OR. She retired in 2017. Carrie is also an active member of the Central Oregon Geoscience Society and an Oregon Master Naturalist through the OSU extension program. Carrie has had a life-long fascination with the land and the rocks, listening to the stories they tell.

Rising Waters: Hike with a Scientist in Seaside, OR

Views from Seaside toward Tillamook Head.

A few times a year the tides swell to levels much higher than are typical. These royally high tides are known as King Tides and occur over a few days period, typically in the months of November, December, and January.

With the King Tides, comes a whole host of changes to the coastlineโ€”local flooding, potentially increased erosion, and an overall increase in coastal hazard risk. However, King Tides are not necessarily something to run from. Many people flock to the coast to see the King Tidesโ€”the crashing waves and high surf are a definitive draw for many wave watchers.

King Tides also offers an opportunity to participate in some community science. Oregon King Tides Project, by the Oregon Coastal Management Program and CoastWatch, ask local Oregonians to snap some pictures of these extremely high tides and post them to their site. The goal of the project is to help coastal communities see their vulnerabilities, especially considering future climate change, so they can better adapt and prepare.

I wanted to learn more about sea level rise on Oregonโ€™s Coast and experience the King Tides. So, I  reached out to Alessandra Burgos of Cascadia CoPes Hub to see if she was open to a coastal ramble.  She agreed.

It was time to head to the beach.

The Hike

  • Trailhead: No Official Trailhead (Start on Avenue U and end at 12th Avenue)
  • Distance: 1.5 miles one way on the pavement; the trail is level.
  • Details: Park on the street or Public Parking at the North End of the Promenade. Public restrooms at North End. The promenade is open to hiking/running and biking. It is a popular spot and can be very busy.

Here Comes the King

It was a mostly sunny winter day during king tides week when Ali (Alessandra) and I met for a walk along the Seaside waterfront. If you want to talk about the ocean, it helps to have a clear view of it as you go.

Immediately, Aliโ€™s dark brown eyes scanned the surf. The waves were coming in fast and there wasnโ€™t much beach left uncovered. The tide was in, way in. 

โ€œI have never been here before,โ€ Ali confessed, โ€œbut I would imagine the beach is usually much bigger.โ€

I tried to imagine what it might look like on a โ€œnormalโ€ day. Even having been there, I couldnโ€™t picture it.

โ€œIt would be nice to have a before and after,โ€ I confessed.

Before and after picture aside, what we were seeing were king tidesโ€”unusually high-water levels at high tide that were expected to continue for the next few days. Begging the questionโ€”why?

Ebb and Flow

โ€œWhat happens with tides is you have the gravitational pull of the moon, which is the strongest force,โ€ Ali explained.

You may have heard that the moon creates tidesโ€”and this is mostly true. As the Earth rotates and the moon revolves around the Earth, its gravitational pull causes the ocean to bulge in the direction the moon is facing. This bulge is dragged around the Earth, like a magnet, as it rotates. There is also a bulge opposite the moon due to a lack of gravitational pull by the moon at this alignment.

However, that is not the entire story. As Ali explained: โ€œThen you also have the gravitational pull of the sun, and even though the sun is bigger, it is further away so you donโ€™t get as big a pull.โ€

However, when the sun, moon, and Earth are in alignmentโ€”you get a very high, high tide and a very low, low tide.

โ€œFor king tides, everything is in a perfect wonderful alignment,โ€ Ali explained. โ€œThe moon is either a full moon or new moonโ€ฆ โ€œ and is in line with the Earth and Sun. This causes a higher gravitational pull on the oceans causing these king tides.

At the time of our hike, it was a new moon. In a couple of days, the king tides would be at their peak. 

โ€œYou can see over there it is higher than normal and those wonderful waves rolling in,โ€ Ali pointed out toward the ocean waves again. They were really moving.

The water level at near high tide with waves rolling in.

1 Tide, 2 Tides, 4 Tides, More

โ€œWhy do we get two tides here?โ€ I asked next as we sauntered our way down a path to the packed sandy beach.

โ€œThat [slightly] has to do with where you are in latitude [because of how the continents are spread out],โ€ Ali responded. โ€œAnd [mostly] it has to do with the shape of the ocean basin.โ€

She also reminded me that we have two bulges making their way around the Earth in a 24-hour period, so there are both two high tides, and two corresponding low tides.

If there were no continents there would be 2 equally proportioned high and low tides every lunar day. The land masses block the movement of the tidal bulge resulting in different tidal patterns. On the West coast, we experience mixed semidiurnal tides meaning โ€œYou have a high, high tide, low, high tide, low, low tide, and high, low tideโ€ฆ four tides,” Ali listed the different tides, but it came out more like a tongue twister.

We were walking the beach during our high, high tide.

Most places on the Earth experience two tidal cycles. However, there are some places that have only one high tide due to the shape of the ocean basin. The Gulf of Mexico, for example, has diurnal tides, experiencing one high tide and low tide on a lunar day.

A Rough Start

Ali and I headed north along the sandy beachโ€”the waves rolled in a short distance away from us. I asked Ali to share a little about herself and how she ended up in her current position.

โ€œI grew up on the East Coast in Philadelphia. Went to school at Rutgers in New Jersey where I was a meteorology major,โ€ Ali began.

She always had an interest in the weather and was planning to be a broadcast meteorologist when she finished college. But her plans changed when Hurricane Sandy hit New Jersey during her Freshman year of college.

โ€œYou saw the destructionโ€ฆ you saw all the trees down, during the night transformers blowing up, huge lines at the gas stationโ€ฆ so that really formed what I wanted to do with my life.โ€

After that Ali became more interested in flooding and the Oceans. She went on to study oceanography at Old Dominion University in Norfolk, VA where she earned a Master of Science.

โ€œNorfolk, VA is home to the largest Navy base in the world,โ€ Ali explained.  โ€œSo, as you can imagine, they were very interested in mitigating against sea level rise.โ€

Rising to New Challenges

After that, Ali moved to Washington D.C. as a Sea Grant Knauss fellow and was introduced to policy and worked on coastal resiliency issues.

โ€œThen the pandemic hit, and I lost my job at the time,โ€ Ali went on. โ€œMy friend was moving to Portland, and I always wanted to visit the west coast, so I packed up and came here.โ€

Finally, after a short stint at UC Santa Barbara, Ali was hired by Oregon State University in her current positionโ€”program manager for the Cascadia Coastline Peoples Hazard Research Hub, or Cascadia CoPes Hub.

โ€œI have been there a year,โ€ said Ali. โ€œIt has been a whirlwind of informationโ€ฆ There are over 90 people associated with the project now.โ€

That is a lot to manage.

Ali Burgos posing for a pictureย onย the promenade.

Collaboration

We hiked on, the sun warming us and the sand firm under our feet. Ali told me more about Cascadia CoPes Hub in fits and starts as we walked along taking in the scenery.

โ€œIn a nutshell, Itโ€™s a 5-year funded project from the National Science Foundation. We are trying to help coastal communities in the Pacific Northwest increase their coastal resiliency,โ€ explained Ali.

Cascadia CoPes Hub is a newer collaborative (it started only about 6 months before Ali was hired) with multiple teams working on different aspects of coastal hazards research and outreach. Ali outlined the focus of each team.

Team 1 is geohazards. This team deals with research around earthquakes, tsunamis, and landslides.

Team 2 is coastal inundation. This team is looking at sea level rise, erosion, flooding, and overall storminess.

Team 3 is community adaptation. Team 3 wants to know what coastal communities are thinkingโ€”what do people value? What do they perceive as threats? And how do they get that information?

โ€œThis is where the social scientists live,โ€ said Ali. 

Team 4 is the STEAM team. STEAM stands for science, technology, engineering, art, and math. And the goal of this team is to bring underrepresented students into STEAM through a fellowship program.

And finally, Team 5 is community engagement and co-production.

โ€œCoproduction is kind of a buzzword in research right now,โ€ Ali explained. โ€œCoproduction is working outside your discipline or field to create new ideas, solutions, and knowledge.โ€ It often involves working with communities, state agencies, as well as other academics.

โ€œWe keep growing… There were 60 people when I started, and now there are 90 plus.โ€

Fading from Gray to Green

As we hiked on the broad plain of sand, Ali pointed out just how low-lying the beach was.

โ€œIf you look at the beach here,โ€ she remarked pointing about, โ€œwe are as flat as flat can be.โ€ Not a good place to be if the water came up too high in a stormโ€”not a lot of protection.

However, looking over toward the City of Seaside, a low wall wrapped along the promenade in front of all the buildingsโ€”wouldnโ€™t that offer some protection?

โ€œOver there we have some seawall,โ€ Ali said, pointing to the structure.ย 

Ali referred to the wall as a form of grey infrastructureโ€”a manmade structure built for, in this case, protection from flooding and storms. 

โ€œI am not a fan, personally,โ€ she went on. โ€œIt has its merits in certain situations, but seawalls can cause more erosion of the beachโ€ฆ And how tall do you make it?โ€

Seaside waterfront properties with seawall in front.

As if on cue, the open sand we were walking shiftedโ€”wide mounds of grassy sand dunes rose up in front of us.

โ€œThese are green infrastructure,โ€ Ali explained. โ€œThis will help block wave energy during storms.โ€

Unlike seawalls, dunes collect sand, rather than letting it erode. As natural-based features, dunes can grow and change over time. โ€œPlus, it can help with habitat,โ€ Ali added.

โ€œNatural and nature-based features are what people are going more towards,โ€ said Ali.

Ali also mentioned cobble revetments as another example of grey-green infrastructure.ย  Essentially, a berm made of pebbles or cobbles mimics natural rocky beachesโ€”water can move through the rocks, while sand can still build up.

โ€œThis is a great dune system,โ€ Ali smiled as we headed through the dunes on what little beach was left. 

Low dunes along the northern stretch of the promenade.

On Shaky Ground

Soon the beach was all but gone and Ali and I decided to move to the pavement. We took some stone steps up and onto the Seaside promenade and continued our walk north.

As we walked, I asked Ali how she felt about the earthquake and tsunami hazards in the Pacific Northwest.

โ€œIt is definitely something I grapple with moving here,โ€ Ali responded.

For those that havenโ€™t heard, the Pacific Northwest is predicted to experience a high magnitude (possibly 9+) megathrust earthquake in the next 50 years. Current predictions estimate a 37% chance of a 7.1+ in the next 50 years according to oregon.gov. This will also result in huge tsunamis up and down the coast.

โ€œWhat is most interesting about that is human perspectivesโ€”trying to understand how people see their vulnerability,โ€ Ali continued. โ€œIt is easy to go day by day, especially if you donโ€™t have past experience, to become very complacent.โ€

Sign at the end of the promenade marking the tsunami evacuation route.

Keeping Perspective

I asked Ali what she thought people should be doing considering the megathrust and tsunami risk in Oregon.

She suggested keeping things in perspective. Yes, there is a risk associated with visiting and living on the coast, but it is still very small.

โ€œEven on my drive down this morning, I get anxiety about coming over here,โ€ she confessed.

However, she also knows that the odds are in her favor.

โ€œI am more likely to get injured in my drive,โ€ she added.

So, what should people visiting or living on the coast focus on? Being prepared. That is what her research cooperative is trying to doโ€”help people know how best to do this on a place-by-place basis.

โ€œWhat is the most important thing to know to prepare?โ€ I asked.

โ€œI think the biggest thing is to know your evacuation route,โ€ Ali suggested. โ€œMany people donโ€™t know which way to go, especially if youโ€™re visiting.โ€

Whenever the Cascadia megathrust earthquake hits, there will be little time to move to high groundโ€”perhaps as little as 10-20 minutes at best. So, look at the evacuation maps ahead of time and have a plan A and a plan B.

On cue, Ali and I reached the end of the promenade trail, where a tsunami evacuation map was prominently posted.

โ€œMoving here, I learned a lot more about earthquakes and tsunamis than maybe I want to know,โ€ Ali laughed nervously.

I hear that, Ali. 

Map of the tsunami evacuation route was posted at the end of the promenade.

Winter is Coming

Upon reaching the end of the trail, Ali and I about-faced for a return journey. This time we stuck to the paved walk that took us past the waterfront buildingsโ€”just a seawall in some spots for protection. Our conversation pivoted back to issues with high water. Ali was going to be speaking for the King Tides Community Science Initiative the following day about sea level rise, and with King Tides rolling in, it seemed important that we return to coastal inundation. Plus, I had a lot of questions.

On the top of my mind was winterโ€”why were king tides so notable in the winter? I asked Ali.

โ€œThey are worse in the winter,โ€ she responded, โ€œbecause of the Earthโ€™s orbit around the sun. We are closer to the sun in the winter so the gravitational pull is strongerโ€ฆ winter king tides are going to be stronger.โ€

One of the biggest Earth Science misconceptions is that the Earth is farther from the sun in the Northern Hemisphere winter, resulting in a change in seasons, but the opposite is true. Fun fact, seasonal shifts have more to do with the tilt of the Earth in relation to the sun. (You have just been scienced!)

Additives

Then of course there are the potential additive effects of storms which are more common on the Oregon coast in winter. I asked Ali to explain how storm surge and waves play a role in water levels.

โ€œStorm surge is basically when you have a storm coming up the coast. You have low atmospheric pressureโ€ฆ with a lot more wind. The winds and pressure are forcing the water upโ€”that is basically your storm surge. This can be coupled with high tides, which could make flooding worse.โ€

Ali explained how the wind is a result of pressure differences along the Earth, which are greater in the winter. And high winds equal bigger waves, which have harmful effects.

โ€œWinter storms come through and produce a lot more wave energy,โ€ Ali explained. โ€œThose big waves can move sand around, cause erosion, and bring in a lot of debris.โ€

Both storm surges and big waves happen all the time, but with high tides, the consequences are magnified.

Rise Up

So, what about sea level rise, overall? What can we expect there?

There are two major contributors to sea level rise, according to Ali: 1) melting glaciers from Greenland and Antarctica, and 2) warming oceans.

How melting glaciers contribute to sea level rise is straightforward: glaciers add water from the land into the ocean, literally filling up the global bathtub, as it were.

Warming oceans affect sea level in a different wayโ€”causing the same amount of water to take up more space. As the water warms, the water molecules move apart in their higher energy state, taking up more spaceโ€”something called thermal expansion. 

Variability

Of course, there is some variability.

โ€œThermal expansion and ice melt arenโ€™t uniform,โ€ explained Ali.

Plus, there are other factors having an effect including changes in currents due to climate change and differences in vertical land movement.

There are sea level rise hot spots, as well as places that arenโ€™t seeing any sea level rise at all.

Luckily, sea level rise has been slower along the Oregon coast overallโ€”mostly because the land is rising too, counteracting sea level rise in some locations.

โ€œGlobal mean sea level rise is 3.4 mm,โ€ said Ali. โ€œOregon is not anywhere near that.โ€

Another El Niรฑo

Then there is natural variability related to whether we are in a La Niรฑa or El Niรฑo year.

โ€œ We have been in a La Niรฑa for the past three years,โ€ explained Ali.

La Niรฑa brings colder weather and more precipitation to the Pacific Northwest.

โ€œWhich is great for skiing,โ€ she chimed.

In an El Niรฑo year, the oceans will warmโ€”which could lead to greater thermal expansion and other issues associated with a warmer climate.

โ€œAnd with climate change,โ€ Ali added, โ€œthey may become more frequent and more severe.

โ€œThe biggest thing with sea level rise is your basic water gets higherโ€”everything is happening on a higher base,โ€ Ali explained.

In other words, a higher sea level means a higher storm surge and high wave energy eroding places it never reached before. King tides would be higher than they are now, and the next El Niรฑo year, more severe. 

Act Now

โ€œWhat should we do?โ€ I asked Ali.

โ€œOur oceans are rising, that is fact,โ€ Ali responded. โ€œHow much and when, is the biggest thing to think about, and what do emergency managers need to think about.โ€

More specifically, Ali recommended creating more natural and nature-based features on the coast as the first line of defense against inundation.

Another optionโ€”is managed retreat. Managed retreat is a planned process of moving buildings and people further inland to avoid hazards and risks.

โ€œManaged retreat isnโ€™t popular, but something to think about,โ€ said Ali.

Ali was quick to add that, managed retreat isnโ€™t something that she is in a rush to see happen in Oregon. Oregon isnโ€™t facing a sea level rise crisis currently, so it probably isnโ€™t as important a strategy right now. However, in the broad scheme of things, Ali was clear that managed retreat is important to adapt to sea level rise. 

Predicting the Future

We were nearing our starting point on the promenade when we passed by a decorated tree or bush opposite the seawall. I snapped a picture. It seemed important for some reason. An emblem of the community perhaps?

Considering the community, what is the future of sea level rise?

โ€œSea level rise is exponential right now,โ€ Ali told me as we walked. โ€œNot on a linear increase. The rate is getting faster.โ€

โ€œWhy is that?โ€ I asked.

โ€œWarming and melt is on a lag, โ€œ Ali explained. โ€œEven if we stopped emissions right now, the oceans will continue to rise.โ€

And continue to rise, in theory, indefinitely.

โ€œIt is hard sometimes,โ€ Ali paused. โ€œPeople say โ€˜you are just doom and gloomโ€™โ€ฆ There is a fine balance to walkโ€”understanding the risks but knowing there is something we can do.โ€

Holiday “tree” along the promenade.

 Incoming Storm

Ali and I were still discussing sea level rise when we got to the point where we could see the waves and an access point to the beach. 

โ€œThe water is straight up to the edge,โ€ Ali proclaimed referring to our coastal view. โ€œHigh tide today is about 8-9 feet. It is normally 2-4 feet.โ€

We headed down to check out the waves from a better vantage point.

As we walked out toward the pounding waves, Ali told me more about ocean waves and how they are generated.

โ€œThe wave energy is coming from the wind,โ€ she began. The longer the fetch (the length of water that the wind can blow without being blocked) the more energy can be imparted into the ocean allowing waves to grow larger.

She went on to explain how the low-pressure system that generates the storm also has a small effect by pushing water up due to the inverted barometer effect.

โ€œIf you have low pressure the water is going up. High pressure it gets pushed down,โ€ Ali described. 

All that said, it was clear to Ali that a storm system was on its way.  Waves were rushing up fast, breaking quickly, and curving ferociouslyโ€”all signs of an incoming storm.

โ€œThey [the waves] are definitely stronger,โ€ she remarked as we stopped and stared. โ€œAnd itโ€™s happening pretty far offshoreโ€ฆ and getting those nice curves to them.โ€

I looked out toward the ocean to try and see what Ali was seeing. I hadnโ€™t considered this idea beforeโ€”that I could look at the ocean and predict the future.

Staring out at the rhythmic movement of the incoming wavesโ€”it all started falling into place.

Reflections

Our oceans are sending us warning signals. They warn us of storm systems coming through hours to days in advance. But more than that, they warn us of impending changes to our planet that we canโ€™t afford to ignore.

Visiting the coast during king tides can be a lot of funโ€”people flock to the coast to see the massive waves and enjoy the pounding surfโ€”but they are also a reminder that our planet is changing. 

Our oceans are warming quickly, and the global sea level is rising, resulting in a multitude of changes to Earth and human systems.

The signs are there. We just need to learn how to see them.

Alessandra (Ali) Burgos a project manager for Cascadia Coastlines and Peoples Hazards Research Hub with Oregon State University. Ali earned a Bachelor of Science in Meteorology at Rutgers University and a Master of Science in oceanography at Old Dominion University.

Fish and Fungi: Hike with a Fish Biologistย 

View of the forest from the trail

The land and ocean may seem like separate entitiesโ€”one solid and secure and the other a watery depthโ€”but the connection between the two is multifold and profound.

Salmonids provide one such connection. Salmon are considered anadromous, meaning they travel between their freshwater birthplace, to the ocean, and back. Upon returning home, they spawn the next generation of salmon before they inevitably dieโ€”completing their lifecycle.

By feeding in the ocean for anywhere from two to seven years, depending on the species, salmon bring marine nutrients to the terrestrial environment. Streamside vegetation gets anywhere from just under 25% to 70% of its nitrogen from salmon. Studies have shown in at least some instances, trees grow faster near salmon nesting grounds.

Salmon are also culturally important fishโ€”providing food for people of the Pacific Northwest for thousands of years.ย  And, in modern times, salmon fisheries have grown in scale and significance. As a result, salmon have also received a lot of attention from the scientific world.

Yet, despite the vast amount of research done on salmon, there is still a lot that is unknown about salmonid species, especially when it comes to their time spent in the ocean.

This is where Laurie Weitkamp comes in. A marine ecologist with NOAA, Laurie has been studying salmon her entire careerโ€”working to understand their complex behaviors and lifestyles to better inform fisheries management. In recent years, she has joined multi-week expeditions in the Pacific Ocean in pursuit of a better understanding of their marine life.

I met with Laurie at a local trail in Newport with the hopes of gaining keener insight into her research. We also planned to hunt for chanterelle mushrooms along the way.

Fish and fungiโ€”now there is nothing more Pacific Northwest than that!

Conserving Fish

Laurie and I began our hike on a gravel road shaded by Sitka spruce and western hemlockโ€”a quintessential coastal forest. It had rained a lot the night before, but this morning was mild and comfortable as we followed the road downhill.

As we walked, I asked Laurie for a quick bio.

โ€œI have been a research fisheries biologist for the Northwest Fisheries Science Centerโ€”one of, I think, six regional Centers around the country, and part of NOAA fisheries,โ€ Laurie described. โ€œI have been doing this for 30 years now.โ€

โ€œCongratulations,โ€ I exclaimed. โ€œThat is an accomplishment.โ€

So, what has Laurie been up to these last 30  years?

It turns out, quite a lot!

Laurie is a salmon biologist with a strong focus on salmon conservation. One of her main projects over the years has been to provide 5-year status updates on West Coast Cohoโ€”aย  threatened salmon species under the Endangered Species Act. In fact, she was the lead author of the West Coast Coho Status Review which led to its original listing back in 1994-95.

โ€œWe just finished our status review update with data from 2019,โ€ said Laurie.

You couldnโ€™t tell just by looking at her, but Laurie is a rockstar salmon biologist.

Hatchery Fish Problem

As Laurie and I continued following the gravel path, we got to talking about the hatchery fish problem.ย 

Hatchery fish are ubiquitous. Bred to improve salmon populations, but they have taken a toll on wild population fitness.

In fact, according to Laurie, stray hatchery fish was a major factor in the original ESA listing for Coho. 

โ€œHatchery fish are essential to fisheries,โ€ Laurie explained, but when we donโ€™t keep tabs on them, that creates a problem. โ€œYou canโ€™t tell what is going on [to wild populations],โ€ in that case.

โ€œThere is a lot of evidence that when you get all of these hatchery fish it depressed the fitness of wild populations,โ€ Laurie went on.

There are studies that have shown this. Breed a wild fish with a hatchery fish and they have fewer offspring. Though it is unclear why.

For these reasons, Laurie has differentiated between hatchery fish and wild fish populations in her conservation and policy work.

Wild populations โ€œare the building blocks,โ€ she explained. โ€œThey are critical to the continuation of the species,” deemed โ€œevolutionarily significant.โ€

Stay Wild

Therefore, to keep wild populations wild, a few things needed to change.

Fortunately, a lot has changed since the original ESA listings.

โ€œOne of the things the state of Oregon did is close down all the Oregon Coast hatcheries. We went from eight million to 300,000 hatchery fish, so they effectively shut down.โ€

The other thing that changed is Oregon started marking hatchery fish by removing their adipose fin before releasing them.

โ€œIt is all automated,โ€ said Laurie. โ€œThey go into a slot, measure how long the fish isโ€ฆ and clipโ€ฆthousands are done per hour.โ€

The results of these changes have been positive.

For one, the โ€œwild population increased in productivity by 25%,โ€ said Laurie.

Second, these โ€œevolutionarily significantโ€ wild fish are protected from fishermen. โ€œ

You arenโ€™t allowed to keep anything that has an adipose fin,” Laurie explained. โ€œThat is huge! And in response to ESA listing.”

Change is a Coming

The ESA listing of salmon species has resulted in other changes as well.

For example, land policy has changed. Laurie mentioned the Oregon Forest Practices Act updateโ€”requiring larger buffer zones on streams to protect fish.

Despite these changes, salmon populations are still struggling. Marine heatwaves have knocked down populations. And no ESA-listed salmon population has been delisted.

For some, this may be seen as a failure, but not for Laurie.

โ€œIt is impressive,โ€ she stated. โ€œNone have been taken off, but none have gone extinct.โ€

And there have been some wins too. Laurie told me that about 1 million sockeye returned to the Columbia this year to spawn. Perhaps the largest sockeye run since the Columbia River dams went in back in the 1930s.

Not bad, considering what salmon are up against.

Segue into Research

As we continued past more second-growth Sitka spruce on moss and fern-covered slopes, we saw someone coming from the opposite direction with a basket of chanterellesโ€”the popular mushroom that we planned to hunt for that day.

Laurie playfully asked if had left some behind. He offered a quick โ€œnoโ€ and a chuckle. Laurie laughed too, undeterred. Her positivity was infectious.

Then Laurie gracefully segued into her research work.

โ€œI am trying to understand what goes on in the Ocean,โ€ Laurie explained.

You may recall, salmon are anadromous fish. They are born in freshwater, but then spend a lot of their lives in the Oceanโ€”some salmon species up to 7 or 8 yearsโ€”before returning to their natal stream to spawn.ย 

โ€œA vast majority of the little guys donโ€™t make it back,โ€ said Laurie. โ€œSome 95-99% of salmon that enter the Ocean do not surviveโ€ฆ. That is kinda the odds.โ€

Laurie was quick to clarify that these odds are not unusual or necessarily related to human impacts. It is their survival strategy.

โ€œThe average female lays 3000 eggs,โ€ said Laurie, โ€œtwo need to survive.โ€

So, the question is Why? Why do so few salmon make it back?

This is the question Laurie has been aiming to answer.

Bottom-up

According to Laurie, there are two main approaches to consider when it comes to salmon lossโ€”either top-down or bottom-up. The bottom-up approach considers how populations are controlled by the organisms at the trophic level below them, i.e., their food.

In the case of salmon, it requires looking at prey availability for the species. Depending on the species, this might be krill, jellyfish, or smaller forage fish.

So, what does Laurieโ€™s research suggest regarding this bottom-up approach?

โ€œIf the water is cold and there is a lot of prey available,โ€ said Laurie, โ€œ[salmon] do well.โ€

In other words, both cold temperatures, which help with upwelling and make the Ocean more productive, and food availability work together to regulate salmon.

According to Laurie, there is a lot of evidence that points to bottom-up being โ€œreally important.โ€

It is also relatively easy to studyโ€”just catch a few salmon and look in their stomachsโ€”but it is only half the equation.

Top-down

A top-down approach suggests the oppositeโ€”that populations are controlled by organisms at the trophic level above them, i.e. their predators.

Salmon predators are numerous and become even more numerous as the oceans warm.

โ€œWhen the water is really warm,โ€ explained Laurie, โ€œyou get warm water predators that come up [from the south],โ€ like hake or pacific whiting.

โ€œHake are incredibly abundant fish,โ€ said Laurie.

Normally summer guests, with ocean warming, hake are extending their stay in the Pacific Northwest for a longer amount of time.

I Hake you

At this point, you may be thinking:

So, just how much salmon are hake consuming?

Turns out the answer is complicated.

Laurie told me about a study she was involved in that looked at how much mackerels and hake predated on salmon as they came out of the Columbia. They sampled thousands of these predatorsโ€™ stomachs for about ten years and found less than a dozen salmon in their stomach contents.

โ€œSalmon are pretty rare,โ€ Laurie explained. โ€œThere are a hundred times more other anchovies out there that they [mackerels and hake] are feeding on.โ€

To add to the difficulty, the stomach contents of any fish only reflect the last 24 hours of feeding. Eat a salmon on Tuesday, by same time Wednesday, any sign that the feeding took place is gone.

Take Terns

Seabirds, like terns and cormorants, are another predator of salmon that scientists are watching.

In this case, some researchers are using tagged salmon to monitor their predation.

โ€œThey [the researchers] put pit tags in individual fish,โ€ Laurie explained. As the birds eat the fish, they also consume their pit tags.

โ€œThen they go over the tern and cormorant colonies after they left in winter or fallโ€ฆ They run over the thing and detect the salmon that were eaten and pooped out in the bird colonies.โ€

Counting pit tags, โ€œthose are the easy situations,โ€ Laurie admitted.

In short, โ€œPredation is really hard to study.”

Chanterelles

We had been hiking for about 45 minutes when we passed one of Laurieโ€™s chanterelle spots. The ground was covered in moss and growing thick with salal and evergreen huckleberry. Tall Sitka spruce trees with their cylindrical trunks made up the overstory.

โ€œIt has not been a very good chanterelle year,โ€ Laurie remarked as she searched the edge of the woods.

However, soon enough Laurie found one of the golden beauties.

โ€œChanterelles look like that,โ€ Laurie held up her find, โ€œwith an irregular shapeโ€ฆ and they have branched gills that are primitive gills.โ€

In contrast, false chanterelles have an uneven coloring compared to chanterellesโ€”โ€œdark in the middle and light on edges.โ€ False chanterelles also have true gills that fork near the cap margins. 

There were a lot of false chanterelles.

Nutrient Connection

As we searched the area for more chanterelles, I asked Laurie if there was any connection between salmon and chanterelles.

Her answer was a brisk โ€œno,โ€ but just as quickly, she reconsidered. Laurie had a quick wit about her.

โ€œWell habitats that are good for chanterelles are also good for salmon,โ€ she noted.

It turns out I was in the right habitat at that momentโ€”soon I had a couple of good-sized chanterelles in my possession.

โ€œFound two!โ€

Speaking of seconds, I suggested to Laurie another connection between salmon and chanterellesโ€”nutrients.

Salmonids have a unique role in nutrient cyclingโ€”they carry marine nutrients from the ocean to inland areas. From here, fungi help decompose the dead salmon bodies, or the waste generated from an organism that consumed their bodies, releasing those marine nutrients to fertilize the coastal forest.ย 

โ€œThere is all kinds of work that shows that trees grow faster along salmon runs,โ€ Laurie observed.

She also mentioned the role lamprey, another anadromous species, plays in fertilizing the forest.

โ€œIt is really cool because they bring up nutrients as well,โ€ said Laurie. โ€œThey can go up vertical surfacesโ€ฆโ€ she explained, โ€œand they can get into places salmon cannot, and fertilize streams that salmon cannot.โ€

At this point we had exhausted our chanterelle patch, so we headed back to the road.

Not long after, we passed by a disturbed area where I noticed a stand of skinny alder trees. Dark green alder leaves lay scattered on the groundโ€”another good fertilizer. Fish fungi, and treesโ€”all helping keep the forest green.

Hiking next to a grove of alder with salmonberry understory on the left

High Seas

We were about halfway through our hike when we turned onto another road.ย  The plan was to travel it for a while before taking a bike path back to complete a loop. This was our migratory route.ย  But what of our fish?

As mentioned earlier, salmon move from freshwater to the ocean and back againโ€”sometimes spending years fattening up in a marine environment. But, last I checked, the ocean is huge.

Which begs the questionโ€”where do salmon go once, they reach the deep blue?

โ€œThey head north,โ€ Laurie asserted. Or at least most do.

Sockeye, chum, and coho all head up to Cape Flattery then onto Canada and Alaska, according to Laurie. They follow the continental shelf for a season, their paths tracked as they pass various outposts along the way, before dropping off the shelf and entering the โ€œdeep sea.โ€

Though, they may as well be dropping off the face of the Earth because, at that point, they could be anywhere.

โ€œWe donโ€™t see them again until they come home,โ€ explained Laurie. โ€œIt is like a huge washing machine out there.โ€

It is Laurieโ€™s work to visit the washing machine, but more on that later.

Keeping Track

As we crunched along the gravel road, I asked Laurie to tell me more about how scientists were tracking fish.

Even before salmon enter the deep sea, they are difficult to track. As Laurie put itโ€”โ€œwe get mixed results.โ€

โ€œThe number of fish you need to tag to get robust results has been really limited,โ€ she explained.

At the same time, knowing the populations and how they are doing is important work. Salmon are valuable and cross [international ]borders.

Laurie told me about the Fraser Sockeye, for exampleโ€”a large and extremely valuable fish. So valuable that a treaty was established between several tribes of western Washington, the U.S. government, Canada, plus U.S. states and Canadian provinces to ensure the fishery is sustainable.

So, tracking matters because salmon matter. They matter enough for international treaties to be enacted.

Fish are tracked in several ways. When it comes to the Fraser Sockeye, acoustic tags are used. These send out unique radio signals, allowing you to identify individual fish. The drawback is you need receivers close enough to hear the signal.

โ€œThe continental shelf in some areas is 30 miles wide. That is a lot of real estate,โ€ Laurie proclaimed.

Another option is to use satellite tags. A benefit of satellite tags is that you can see where the fish is, as well as other data like temperature, pressure, and depth from anywhere. The drawbacks are that you must get the tag back to download all the data and, because of the size of the tags, only older adult fish can carry them.

Laurie told me about a study using satellite tags where researchers were getting a slightly elevated constant temperature reading from their chinook for a long period of time.ย ย 

โ€œWhat they think is that salmon sharks were consuming these Chinook,โ€ Laurie laughed. The constant temperature was recorded from inside the digestive tracks of the salmon sharks.ย 

Eaten

A break in the trees brightened the path as we reached a high point in the trail. Though the sky was overcast with clouds, the light from the sun cast a dim reminder of its existence through the gray shroud.

Laurie shifted the conversation back to her work on the high seas. This is where things get even more murky.

Laurie started by talking about her work detecting salmon predators on the high seas.

โ€œIt is really hard to figure out,โ€ Laurie stated. โ€œIt is hard to tell who is doing the predating and whenโ€ฆ. Are they [predators] only getting the small fish [salmon] or the sick fish [salmon]?โ€

In 2019, 2020, and 2022, Laurie and her team did an extensive study of salmon predators using eDNA and didnโ€™t find many.

eDNA is a newer technology, where water samples are gathered and sent into a lab to be tested for the DNA of species of interest, like salmon predators. Because organisms are constantly sloughing off DNA, this is a good way to gauge the presence of a species even when it is not caught in nets.

โ€œWe found a couple of predatory salmon sharks and a couple of fish, lancetfish, and daggertooths, that eat strips of salmonโ€ฆ,โ€ said Laurie.

โ€œThey arenโ€™t here. We are not catching them in the nets or detecting their DNA.โ€

Starving

So, what is going on?

Another โ€œarm-chair hypothesisโ€ is that the salmon are starving during the winter. Salmon that donโ€™t get fat over the summer donโ€™t survive onces winter arrives. This would be especially important for small fish because they canโ€™t store much energy. ย Laurie and her team tested this hypothesis.

โ€œWe get out there and ocean age 1 fish are going great, but 2s and 3s are not looking great,โ€ said Laurie. โ€œThey are really skinny.โ€

They took blood samples of the fish to test for Insulin Growth Factor (IGF)โ€”a chemical that signals healthy growth in fish. As expected, fish that were in the ocean for 1 year, have high levels of IGF.

But those in year 2 or 3 had either really high levels or really low levels.ย  They also had green gallbladdersโ€”a sign of starvation.

โ€œWhatโ€™s going on?โ€ asked Laurie.

It is still unclear.

โ€œYou answer one question,โ€ Laurie smiled, โ€œand you generate five.โ€

Do We Stay or Do We Go

Not all salmon spend a lot of time in the ocean, however,โ€œit depends on the speciesโ€โ€”a statement I heard a lot from Laurie.

Chum and sockeye are really the only ones with an extended high seas stay.

โ€œWhat we think happens is they spend winters in the Gulf of Alaska and move into the Bering Sea in the summer until they are ready to come home.โ€

โ€œOthers are only a year,โ€ said Laurie, like Coho.

Then there is fall chinookโ€ฆ

โ€œFall chinook stay on the continental shelf,โ€ said Laurie. They travel back and forth along the coast for years before returning.

Every species has its own way.

โ€œWhat is really cool is the whole idea of these chum salmon ages 2 and 3 being skinny. All different stocks are together in the Bering Sea.โ€

Bang for your Buck

Laurie and I reached our turn-off onto a mountain biker trail. Steep and a little slippery, we both carefully navigated our way down the path.

Laurie pointed out a patch of slippery jack mushrooms as we passed by.

โ€œPeople do eat them,โ€ she noted, but their slimy appearance didnโ€™t appeal to either of us, so we trod on.ย 

โ€œAnyway, there is all kinds of really cool stuff we are finding being out there [at sea],โ€ Laurie proclaimed. She had a knack for transitions. โ€œIt is also really expensiveโ€ฆ 32 days at $30,000 per day.โ€

With that sort of price tag, a lot of work happens before these expeditions to plan and prepare. Using freshwater data and developing hypotheses are vital steps to take beforehand.ย 

โ€œThe idea is we are trying to get the most bang for our buckโ€ฆโ€ Laurie explained.  โ€œUsing the information [from other sources] so when we are not out there, we can still understand what is going on.โ€

Food for Thought

While we were talking, suddenly Laurie made bee-lined it off the trailโ€”a massive burnt orange-colored lobster mushroom was growing just off the trail.

โ€œWow!โ€ Laurie exclaimed, โ€œI donโ€™t think I have ever seen this large a lobster. These are one of my favorites!โ€

Unfortunately, it was a bit too old and soft to take home and eat, but we took a picture of it to commemorate the find.

โ€œStill coolโ€ฆโ€ Laurie said as she put it down on the mossy ground.

My mind turned to food, I askedโ€”โ€œWhat are they eating?โ€

โ€œDepends on the species,โ€ said Laurie.

Hmmm, that sounds oddly familiar.

โ€œSockeye and Pink salmon eat low in the food chainโ€”a lot of zooplankton.โ€

Sockeyeโ€™s red flesh is a result of carotenoids from zooplankton being incorporated into their tissue.

โ€œSo, the chum are famous for eating a lot of gelatinous stuff,โ€ Laurie continued, โ€œlike jellyfish and evolutionary dead ends, like tunicates, they tend to like.โ€

โ€œCoho, Chinook, and steelhead start with zooplankton and graduate to larval and juvenile fish and squid.โ€

Laurie with a massive lobster mushroom

Itโ€™s Getting Hot in Here

Soon we were off the biker trail and on another gravel road. We passed by some salmonberry shrubsโ€”โ€œany connection there?โ€ I asked, referring to salmon.

โ€œNope, they just look like their eggs,โ€ said Laurie. Thatโ€™s what I thought, but worth an ask.

We passed by some more possible chanterelle spots, but only picked one more immature mushroom.

We climbed up onto a small, forested hill next to a creek to check for chanterelles. The hill was dense, shaded, and cool.

While we foraged around, I asked Laurie what she thought the underlying issues were for salmon success. Does it come down to getting enough food?

Though she agreed that food was a big part of it, she was quick to point out that it was probably not just one thing, but rather a host of interacting factors.

High ocean temperatures, for example, impacts many of the other factors associated with salmon success, including food availability.

โ€œThe ocean absorbs 90% of the excess heat that we have been putting into the atmosphere,โ€ Laurie stated. โ€œClimate warming is really ocean warming. Even below 5000 meters, it is getting warmer.โ€

Ocean warming is a factor that cannot be ignored.

Beaver Believers

A murky creek slogged along a the bottom of the forest.

โ€œThat is great coho salmon,โ€ said Laurie. โ€œThey love side channels in the winter.โ€

Coho salmon are Laurieโ€™s specialty, having studied them more than any other species. Though a coastal species, they spend a lot less time in the ocean than other speciesโ€”only a year, though some males may only spend six monthsโ€”and more time in freshwater.

I asked Laurie if she could tell me anything else about coho that makes them unique. Her responseโ€”beaver.

โ€œCoho benefits the most from returning beavers,โ€ said Laurie. โ€œThey really do well with beaver ponds.โ€

Beaver are what are called ecosystem engineersโ€”they transform bottomlands, creating ponds pools, and wetlands.ย  As Laurie put it, โ€œThey create โ€œkiller coho habitat.โ€ย 

Laurie told me about early coho research she did in 1987 in Alaska. They would follow the coastal streams up, stopping at each beaver pond to catch count, measure, and weigh coho. Even five beaver dams up, they were still catching coho.

โ€œCoho were flourishing in these beaver ponds,โ€ said Laurie. โ€œThey know how to get through the dams.โ€

Young steelhead and spring chinook love riffles and high mountain streams. Not coho. They like low-gradient streams with connected floodplains.

And of course, they love beavers.ย 

Own up

However, good coho habitat is not easy to come by, as many of the places coho and beaver enjoys, humans like as well.

As Laurie and I popped back onto the gravel road to continue our journey back to our cars, I asked Laurie if there was anything people could do to help coho and other salmon species.

โ€œThe biggest thing is just taking ownership,โ€ said Laurie. Understanding that everyone can be either part of the problem or part of the solution is an important first step.

Next, get involved. Laurie suggested participating in local watershed counsels and estuary conservation groups.  A lot of times these groups will have opportunities to give back, including planting native vegetation.

Beyond this, โ€œthere are easy things you can do,โ€ Laurie exclaimedโ€”โ€œdonโ€™t pour oil down the storm drainโ€ฆ think about what you are going to have in your yardโ€ฆ,โ€ she suggested for example.ย 

Reducing pollution and creating natural filters that slow water, are both helpful to fish. High flows can scour out salmon nests, called redds, and carry silt that smothers salmon eggs.

Pollutants can sometimes accumulate in salmon in high concentrations, reducing their ability to fight off disease and sometimes killing them outright before they can spawn. Laurie mentioned a tire preservative that has increased pre-spawning mortality in salmon.

โ€œEven in high seas, they [salmon] have detectible levels [of pollution],โ€ said Laurie.

Sea Legs

Laurie and I continued to discuss the challenges facing salmon as we hiked the gravel road, a better option for salmon than pavement.

We passed by a newt that was exceptionally skinny. Could it be feeling the same strains as salmon feel with winter coming on? I wonder.

ย I could see the gate ahead of us when I asked Laurie about what it was like to work on the high seas.

โ€œSome days, I think, I canโ€™t believe I am getting paid to be out here,โ€ she smiled, โ€œOther days, I think, they are not paying me enough.โ€

Laurie has been going to sea for the last 30 years with several weeks on the boat each time. That is a lot of hours clocked on a moving vessel. The seasickness and tight quarters get to you at times, but then there are moments of pure joy and wonder.

Sautรฉ  

Soon we are back to our vehicles. We stood and chatted for a few more minutes about lamprey and the vastness of the ocean before we decided to part ways.

As I began to walk off, Laurie gave me one more piece of adviceโ€”โ€œCook them in a dry pan,โ€ said Laurie, referring to the chanterelles, โ€œmedium heat.โ€

And with that, I migrated home. Fish, fungi, forest, and meโ€”we are all connected.

Laurie Weitkamp is a Research Fisheries Biologist with the Northwest Fisheries Science Center since 1992.

Hike with a Geologist at Seal Rock

About 15 million years ago basaltic lava released from fissures in northeast Oregon and southwest Washington poured through the Columbia River basin, traveling across the Pacific Northwest. Collectively these flows are known as the Columbia River Basalts.

What is perhaps most intriguing is just how far some Columbia River Basalts traveled. Flows can be found in locations as far afield as Silver Falls State Park, for example. Other flows traveled hundreds of miles from their origin through the Coast Range mountains to the Pacific Ocean.

Seal Rock State Park is the site of one such flowโ€”making it a premier location for geology enthusiasts.

So, when I reached out to Sheila Alfsen from the Geological Society of Oregon Country for a hike and interview and she suggested we visit Seal Rock, it was met with a resounding “yes! “

Circuitous routes

I met Sheila in Philomath so we could drive to the coast together and talk geology along the way. As we headed out, she told me a bit about her background.

Sheila’s path to geology was a circuitous one.

She started out as a volunteer and teacher’s assistant at her own childrenโ€™s schools where she realized she had an interest in and a knack for teaching.

Then, when state requirements insisted she go back to school for her job, her mind and life path were changed.

โ€œMy first class was oceanography,โ€ Sheila gushed, โ€œand the first thing we talked about was plate tectonicsโ€ฆThis was everything I wanted to know. I was hooked on geology after that.โ€

Soon enough, Sheila had earned an associate degree, and later a Bachelorโ€™s in Geology and Spanish, and a Master of Arts in Teaching (MAT).

She started teaching high school science and eventually moved on to teaching college courses, some with her mentor, Bill (William) Orr. 

Sheila found her passionโ€”teaching geology.

โ€œIn Geology, you arenโ€™t just talking about the rocks, but what they tell us about the history, and therefore, future of the planet. In Earth Science, you also talk about the oceans and atmosphere,โ€ Sheila explainedโ€”It is all the Earth Systems. 

โ€œI can teach basic principles of physical science within the context of earth science.โ€  Everything has a geology connection.

Highway 20

Our first stop on the way to the coast was Ellmaker State Wayside off Highway 20.  Here, Sheila laid out a plan for the day and gave a bit of background on the road we would be following to reach Newport. 

Several decades ago, the State Department of Transportation attempted to reroute the highway. Back then, the highway was routed through Eddyville where it followed the Yaquina River on windy roads that not only made the drive to the coast longer but more hazardous.

So, the State hired a construction company to cut a new route through the coast range. But problems ensued. The land was unstable, and landslides became a  huge issue.

โ€œBasically, they didnโ€™t consider or understand the geology until they already had a lot of problems,โ€ Sheila explained.

Their oversight came at a high cost. By that time, the first company hired had gone broke and a new construction company was brought in with more geological expertise.

โ€œIt took 10 years later and over double the budget to get it done,โ€ said Sheila.

Ellmaker State Wayside off of Highway 20

Structure

Sheila and I hit the road again to see just what exactly had thwarted the project. Turns out you can see the problem in the rocks.

As we drove up the highway, Sheila pointed out roadcuts, as we passed. The rocks in the roadcuts were light colored and dipped to the east as we headed up the pass.  Later, a bit further up the road, the layers were arranged nearly horizontally. Then, we reached a spot where the rock layers had turnedโ€”dipping westward toward the ocean.

Here we pulled over to take a closer look. 

Sheila explained that the reason that the highway road project didnโ€™t succeed is that from the start they didnโ€™t pay attention to the geologyโ€”specifically, the structure of the rocks.

โ€œWhen we say structure in geology,โ€ Sheila explained, โ€œwe are talking about how the rocks are folded and how they are positioned.โ€ 

She went on โ€œGeological structure is how the rocks are put together. It makes a big difference.โ€

The structure we were observing as we came over the Coast Range on highway 20 is what is called an anticline.

โ€œAn anticline is an arch,โ€ said Sheila โ€œand this is one limb of the anticline,โ€ she pointed westward, โ€œand the other way is the other arm.โ€

Sheila went on to explain that this giant arch was also plungingโ€”dipping to the north.

โ€œPressure from this direction,โ€ she pointed west again, โ€œfrom the Juan de Fuca plate, creates the anticline.โ€

The Juan de Fuca plate is the current tectonic plate that is subducting (going under) the North American Plate just off Oregonโ€™s coast. However, according to Sheila, there is also pressure from the Klamath Mountains to the south that has resulted in a โ€œrotation of the whole coast rangeโ€โ€”this is what makes the anticline tilt to the North. This is why pieces of rock were breaking off and sliding onto the road, inhibiting the progress of the construction.

Sheila demonstrates the shape of an anticline.

 Tyee Formation

We got out of the car to get a closer look at the rock layers themselves.

As we stood there talking, a police car pulled up to see if we were okay.

Sheila laughed, โ€œJust a little geology lesson,โ€ she told them, before inviting them to join us. They declined, but I got the sense that this was not the first time Sheila has made such an invite.

โ€œThis rock is the Tyee Formation,โ€ Sheila described as we looked across the highway at the tilted layers.โ€œThis layer of rock is famous,” she went on, โ€œIt goes all the way down to the Klamath Mountains.โ€

The Tyee Formation is comprised of sandstone and shale, formed from sediment that was deposited in a large underwater delta some 45 million years ago.  There was no Willamette Valley or Coast Range at the time, just a gigantic bay. The Klamath Mountains were already in existence and shedding sediments into the bay to form the delta.

โ€œThe delta was huge and went all the way out northward to about Dallas,โ€ described Sheila. I tried to imagine Oregon 45 million years ago, missing a good quarter of its landmass.

Eventually, the delta turned to rock and was folded and lifted into the Coast Range, powered by the subduction of the Juna de Fuca plateโ€”a process that continues even today.

Turbidity Currents

 Sheila suggested we walk closer to the roadcut to look at the rocks of the Tyee more closely.

She explained that when the sediments from the Klamath Mountains would fall into the bay, this resulted in โ€œturbidity currentsโ€โ€” a sudden flush of sediment and water rushing off the continental shelf before settling into distinct layers.

These fast flushes of sediment became the layers of rock that make up the shale and sandstone of the Tyee formation. The sandstone layers in the rock formed from quickly settling sand, and turned into thick, light brown colored layers of sandstone.  Clay, on the other hand, โ€œtakes a long time to settle out.โ€ These clay layers presented themselves as dark gray, incised bands in the roadcut.

โ€œOne layer of sand and one layer of clay above it is one event,โ€ Sheila pointed out. โ€œThis is what the Coast Range is made of.โ€

Sheila pointed out the shiny flecks that glittered in the sandstone layers. โ€œMuscovite,โ€ she called them, โ€œfrom the Idaho batholithsโ€โ€”a clue that when the Klamath Mountains were first accreted, they were near the Idaho border.

The Tyee formation up close.

A Closer Look

Sheila soon began to poke around, digging into the roadcut rocks.

โ€œIf we are lucky,โ€ said Sheila, as she pulled a rock from the base of the loose shale layer, โ€œwe will find little trails of marine organisms.โ€

You see, between each turbidity current, the organisms that are living and feeding on the sediment before they are wiped out by the thick sequence of sand that suddenly gets dumped on them. Their fossil remains can often be observed as trails in the sandstone and can be used to date the layers.

Sheila and I continued to pick at the roadcut and examine any loose pieces of rock that came away easily. The shale broke off in thin layers, while the sandstone felt gritty and rough.

I held a piece of rock up to my eye with a hand lens to see the shiny flat muscovite mineral amongst the grains of tan-colored quartz and feldspars.

โ€œA geologist sees things. When you learn about the geology you look at the world differently and it is beautiful.โ€

Tyee sandstone with fossil trails of marine organisms.

The Road to Jump-off Joe

Sheila and I hit the road again. We were going to make one more stop before heading to Seal Rockโ€”a place called Jump-off-Joe.

After another 30 minutes of driving through the Coast Range, we reached Newport and the Pacific Ocean.  We drove North a bit on Highway 101 before veering off onto a side street and pulling over in front of a roadblock and a parking lot with an oceanfront view.

Just past the cliff edge, you could see an old building foundation in disrepair, as the land around it had subsided and begun the process of crumbling into the sea.

As we stepped out of our cars for a closer look, Sheila laughed at a sign on the adjacent hotel that boasted about its โ€œocean views.โ€

โ€œThis building was a football field away from the edge,โ€ said Sheila, thinking back to her last visit. โ€œThe view is getting more and more exciting,โ€ she snickered.

โ€œCoastlines are unstable,โ€ said Sheila. A lot of the rock on the coast is layered sedimentary rock and โ€œsome are inherently unstable.โ€

The fact that someone tried to build in this location was ludicrous to Sheila.

โ€œImmediately it started slipping,โ€ said Sheila. โ€œYaquina Head in the north, to the opening of the estuary is all landslide area.โ€

Time and the elements had really taken a toll on the abandoned structure. Graffiti covered large portions of the dilapidated foundation. Signs warned people to stay back.   

It was all a bit ominous. We kept our distance from the edge.

Derelict abandoned building at Jump-off Joe

Sandstone Arch

Then, Sheila pointed to the right of the crumbling foundation, a small sandstone mound stood just below on the beach. Another sign of erodibility and instability of the rocks that make up much of this part of the coast.

โ€œBack in the late 1800s or 1920s that was an arch,โ€ said Sheila pointing to the small, but visible sea stack. โ€œIt has been eroded.โ€

The location of the arch was once referred to as โ€œJump-off Joe,โ€ apparently because the cliff down to it was steep. It was quite the site to see back in the day, as evidenced by a quick google search.

Now, it was hardly an attraction, having been weathered down to a remnant of its former self.

Of course, not all the rocks on the coast are as suspectable to erosion and weathering as much of Newport Bay. Yaquina head, for example, just visible to the north is made of basaltโ€”a much more resistant rock.

โ€œThat is why those are points out there,โ€ reasoned Sheila. In fact, basalt rocks make up much of the Oregon Coasts’ headlands.

But where did all this basalt come from?

I was about to find out.

View of the remnants of Jump-off Joe

Sea Stacks

Sheila and I took off again for our final destinationโ€”Seal Rock State Recreation Site.

We arrived around lunchtime and stopped for a quick picnic lunch at a table just behind the bathrooms.

After lunch, we followed the paved trail back up through the twisted shore pines that led out to the Seal Rock viewpoint. From here, sea stacks of various sizes jet out of the ocean in a curved line.

โ€œWe call this a ringed dike because it forms a ring shape,โ€ said Sheila. โ€œWhat used to be a low space fill with lava, and the stuff around it erodes away,โ€ she explained.

Elephant Rock

The largest of the rocksโ€”a massive rock towering structureโ€”is known as elephant rock.

โ€œElephant rock is what we call a sill,โ€ said Sheila, โ€œin igneous geology, a layer of lava that squeezes between two layers of rock.โ€

โ€œIn this case, the lava didnโ€™t intrude between the layers, it just fell into the soft sediments of the coast and re-erupted,โ€ Sheila backtracked,  So, โ€œnot technically an igneous sillโ€ฆbut it is basalt.โ€

Basaltโ€”a hard and resistant rock. Waves โ€œeat away at sandstone,โ€ but basalt, not so easily. 

โ€œYou can see the cave under the rock, to the right,โ€ said Sheila as we started further down the trail that leads to the beach. โ€œIt is sandstone. It is easier to eat away.โ€  A small cave carved into sandstone cliffs to our right.

Just like at Jump-off Joe there are signs that warn people not to walk on these cliffs. Just like Jump-off Joe, the area is unstable.

Sandstone to the right with basalt to the left in the distance at Seal Rock State Park

Cobbles

The trail eventually petered out as we neared the beach. We carefully clambered over rounded rock cobbles that had been turned by the waves.

โ€œThis is nicely polished basalt,โ€ said Sheila as she picked her way down.

Basalt, Sheila explained has cracks in it that develop when the lava cools. The columns of elephant rock are a great example.

โ€œIt is easy for the waves to break it up,โ€ remarked Sheila.

Basalt cobbles.

Magnetite

After some careful maneuvering, we reached the beach and headed south, following the ocean’s edge where the sand is firm. Soft gray-colored sand lay underfoot, but Sheila was on the hunt for something darker.

โ€œIf you look at the beach, have you seen areas with dark sand?โ€ asked Sheila. โ€œThat is magnetite.โ€

Magnetite, she explained comes from weathered basalt.  Magnetite is a dark-colored mineral made of iron and magnesiumโ€”making it magnetic. It is heavy and often accumulates in areas.

โ€œNear stream you see it,โ€ Sheila advised.  She had seen a thick layer of it on previous visits to the beach and was curious to see it again.

โ€œHere is magnetite,โ€ said Sheila a few moments laterโ€”though not the band of magnetite she was hoping to find.  Black sand lay in a rippled pattern on the otherwise pale-colored sand.

Magnetite on sand.

Dynamic

โ€œHere we are watching the pattern that develops in the sediments,โ€ said Sheila.

She went on to explain how sediments are pushed up on the beach at an angle by the surf and then fall straight back down the beach so that they constantly are moving along the shoreline.

โ€œA coast is a dynamic place, always changing,โ€ she affirmed.

The magnetite pattern was just one sign of constant coastal change.

A Lava Story

Sills, dikes, cobbles, and magnetiteโ€ฆ we headed toward the far shore and crossed a small creek. It was time to get to the main event. Where did the lava come from?

โ€œThis is the southernmost extent of the Columbia River Basalt,โ€ said Sheila.

The Columbia River Basalt, as mentioned earlier, are lava flows that originated from fissures in eastern Oregon and Washington some 15 million years ago.

โ€œThey made their way through the Cascades, down the Willamette Valley, and as far south as Salem Hills,โ€ said Sheila.

In fact, the Salem Hills are Columbia River Basaltsโ€”โ€œthey are just coved with vegetation,โ€ explained Sheila. 

โ€œA typical flow was 100 ft thick,โ€ Sheila described. โ€œImagine a wall of lava that is one hundred feet thick and flows like syrup.โ€ 

Remarkably the flow stayed liquid as it traveled all the way to the coast. This is different than one might expect especially if you have seen a Hawaiian eruption. Sheila described seeing a lava flow in Hawaii cool right before her eyes.

In the case of the Columbia River Basalts, there is โ€œso much lava, the outside will crust over, and it will break through its own crust and keep going,โ€ Sheila described. โ€œIt could advance 3-4 miles per day.โ€

According to Sheila, the basalt rocks we were seeing were Wanapum basalt, the youngest of the Columbia River Basalts, specifically the Gingko flow.

Final Contact

By now we had made our way over to the sandstone and basalt cliffs opposite the ocean. Here, we passed by what looked like a small black stone wall jetting out of lighter-colored sandstone.

โ€œIt was probably soft sand when the dark lava intruded but now it is sandstone,โ€ explained Sheila.

โ€œThis is part of the ring dike,โ€ said Sheila, โ€œa crack that is filled with lava.โ€

Dark basalt lava intruding on sandstone.

 We saw more cobbles of polished rock before reaching the far end of the ring dike.

โ€œBasalt is here,โ€ said Sheila pointing up at some heavily fractured black rock overhead.  โ€œAnd the contact between the basalt and the soft sediments,โ€ she pointed to a deeply eroded area below the rocks where thin ribbons of rock layered together.

โ€œLooks as fresh as it did when it cooled 15 million years ago,โ€ she exclaimed with a smile.

The far end of the ring dike.

Tracking Flood Basalts

At this point, Sheila and I turned to retrace our steps. But before we made it back very far, we stopped for a quick geology lesson and big-picture discussion on the basalt flows. 

โ€œCoastal provinces are kind of a collage of everything that has happened inland,โ€ said Sheila, as she traced a sketch of Oregon into the sand.

She began pointing out important landmarksโ€ฆ โ€œthe Columbia River, Cape Blancoโ€ฆโ€

โ€œCracks opened over here and issued lava,โ€ she pointed up to the northeastern part of the state. โ€œMost of it came down the Columbia River.โ€

The Columbia River used to be further south in what is now known as the Columbia Plateau, she explained, but it got pushed up north as the lava flowed through.

โ€œThen when it comes to Portland and the Willamette Valley,โ€ we moved further down the map, โ€œit makes up the Amity Hills, Eola hills, and Salem Hills.โ€  Again, these would have been low points, or depressions at the time.

“We find it in the Molalla River in what used to be river valleys,โ€ she continued, and in places like โ€œSilver Falls State Park.โ€

โ€œThen we see it out here and in the Capes all the way as far south as Seal Rock,โ€ she concluded.

Sheila drawing Oregon in the sand.

A Gap

But there is a problemโ€”a gap if you will. There is not a clear sign of Columbia River Basalt flows through the Coast Range Mountains. How did they make it all the way to Coast near Newport?

This is where Sheila comes in. She has made it her mission to find Columbia River Basalts in the Coast Range Mountainsโ€”to trace its path to the Ocean.

Now there is a lot of basalt in the Coast Range Mountains, but the problem is โ€œthe chemistry doesnโ€™t match up.โ€

โ€œA lot of it is Siletz River Basalt,โ€ Sheila said as we restarted our walk back.

Siletz River Basalts are part of a massive igneous province that formed in the Pacific Ocean before accreting to North America beginning about 50 million years ago known as Siletzia or the Siletzia Terrane. This exotic terrane became the foundation for the Coast Range but is also visible in various locations in the Coast Range.

According to Sheila, Columbia River Basalts have โ€œhigher silica than most basaltโ€  and each flow or unit has a specific chemistry. She has collected samples at various promising locations in the Coast Range but has yet to find a match.

Perpetual Teaching and Learning

Sheila and I soon recrossed the creek we had waded over earlier. 

After we crossed, I asked Sheila to tell me about one of her favorite places on the Oregon Coast. She had mentioned Cape Perpetua earlier and I wanted to know the story.

โ€œCape Perpetua was a personal thing,โ€ started Shiela. โ€œ I was studying oceanography and looking out at the ocean.โ€

She could see the waves breaking below her and she realized she could calculate how far apart each wave from another using known distances, like the road. The distance of one wave to another where they start to break tells you the depth of the water at that location.

โ€œIt came to me,โ€ she went on. โ€œI really love this. I want to do this.โ€

Sheila paused.

โ€œThat was 25 years ago. I havenโ€™t tired of it.โ€  

We continued our conversation passing through the creek, back up the basalt cobble, and up the paved path to our carsโ€”and Sheila never tired.

And you know what? Neither did I.

Sheila Alfsen is a geology instructor at Chemeketa Community College, Linn-Benton Community College, and Portland State University. She is also a past president and program director of the Geological Society of Oregon Country in Portland. Sheila earned d Bachelor of Arts from Western Oregon University for Geology and Spanish before going on to get an MAT from Western Oregon University.

Hike with a Geologist to Triple Falls in the Columbia River Gorge

View of Triple Falls flowing over basalt.

Oregonโ€™s side of the Columbia River Gorge is known for its steep cliffsides with cascading waterfalls, including touristy Multnomah falls. Hike up any of the creeks and rivers from the Columbia and you are sure to encounter a waterfall or two or three. Lush forests, gorgeous views of the Columbia and nearby mountains, and heart-pumping climbs, make a visit to the region a popular choice for Portland area hikers.ย 

However, there is more to the region than stunning scenery. The Columbia River Gorge is geologically unique. It cuts through one of only a relatively few flood basalt provinces in the world. In addition, the area has been sculpted by the Columbia, and, most profoundly, by the Missoula Flood eventsโ€”also relatively rare glacial outburst flood events that help define the region.

To better appreciate the unusual geological history of โ€œthe gorge,โ€ I met up with Jim Oโ€™Connor from US Geological Survey at the Horsetail Falls Trailhead for a short hike up to Triple Falls.

Quadrangle by Quadrangle

Having not visited Triple Falls in a long while, when I arrived at the trailhead to meet Jim, I was more than ready to explore the trail through his fresh geological eyes. After gathering our gear, we headed across the Columbia Gorge Highway to the Oneonta trailhead to begin our climb up to the falls. As we got started, I asked Jim to tell me about where we were.

Jim explained that the USGSย  has been mapping the Columbia River Gorge for the past 10 yearsโ€”quadrangle by quadrangle. A quadrangle is roughly an eight-by-fifteen-mile area.

โ€œIn the Gorge, from the Sandy River to the Deschutes River there are probably about twenty-five quadrangles that touch the Columbia Riverโ€ฆ Right now, we are in the Multnomah Falls quadrangle.โ€

Most of the mapping has been done, but only a few quadrangle maps have been published so far. The Multnomah Falls quadrangle was mostly mapped about six years ago but publication awaits final review and layout.

I asked Jim why there was such a push to map out the Columbia River Gorge Corridor.

โ€œThere are a bunch of reasons for that,โ€ he responded.

One reason, Jim suggested, was to simply tell the history of the place. The Columbia River Gorge, as mentioned early, is a relatively young flood basalt provinceโ€”built up layer by layer of thin, fluid basaltic lava flows, as you see in a Hawaiian style of eruption.ย 

โ€œThere are probably some 50-individual basalt flows as part of a major eruptive episode that occurred mainly around 16 million years ago,โ€ Jim described.

โ€œOriginating from fissures in SE Washington, NE Oregon, and Idaho,โ€ he continued,ย  โ€œthese flows covered 200,000 square kilometers. Covering much of Eastern Oregon and Washington; flowed through the Cascades, and many flows made it even to the Pacific.โ€

Other reasons include understanding โ€œthe causes and consequences of a large igneous provinceโ€ and โ€œthe history of the Columbia River,โ€ along with the paleogeography and topography.

This Rock is Not Like the Other

One goal of the mapping is to distinguish the different flows apart and track their individual extents.

โ€œThey all look the same,โ€ explained Jim. โ€œIf we bang on the rocks, we look at fresh faces, sometimes you can see minerals that help tell them apart, but really the only reliable way to tell them apart is geochemically.โ€

That means heading out into the field and collecting samples of rock.

Jim described hiking up and down the trails and in between with a rock hammer and sampling rocks, being sure to mark each rockโ€™s location. The samples are then sent in for chemical analysis and lines are drawn on the map that traces each flow.

The work is very physically taxing, but the best way to get the job done. Hazards, regulations, and other limitations make it difficult to collect samples during much of the year, so much of the fieldwork is limited to September and October.

With all that in mind, Jim suggested that this sort of mapping would be mostly phased outโ€”probably in the next few decades.

โ€œThe mapping we are doing now is probably the last being done โ€˜boots on the groundโ€™ because it is hard and time-consuming,โ€ said Jim. โ€œTechnology is going to develop and remote detection will happenโ€

In fact, a lot of the technology necessary already exists. Most topographic lines are already drawn using remote sensing, for example. There are even devices (currently used on Martian rovers) that can analyze rocks on the spot. Though Jim said that Columbia River Basaltsโ€™ differences are too subtle for the current iteration to work. 

โ€œProbably next century [mapping work will be done] with drones,โ€ laughed Jim.

Jointing/Patterns in the Rocks

Once across the road and started hiking up the trail, we were able to get a closer view of the thick layer of rock with a jagged, angular texture.

โ€œWhat we can see here is one thick massive flow,โ€ Jim explained pointing at the massive rock walk. Jim described the fracture pattern as โ€œHacklyโ€ or โ€œbrick batโ€โ€”terms that I had not heard but essentially described the sharp and even pattern in the rocks. He also called the area an โ€œentablatureโ€ zoneโ€”the name for a zone of basaltic lava with this sort of irregular fracture pattern, or โ€˜jointingโ€™.ย ย 

โ€œSometimes the jointing will be in columns,โ€ Jim addedโ€”another typical jointing pattern of basalt that reminds me a bit of a bundle of pillars.

He went on to explain how the different jointing patterns develop while the lava cools in place. Jim used the analogy of mud cracksโ€”like mud, it cools (or dries) from the outside in, shrinking and breaking into often beautiful formations.

โ€œSome flows have distinct jointing,โ€ Jim went on, allowing an astute geologist to tell flows apart.

โ€œThis is the Downey Gulch flow,โ€ Jim said pointing back up the large rock face. โ€œIt commonly has this thick entablature zone.โ€

Thick entablature zones like this are often where you find waterfalls, Jim explainedโ€”โ€œthey hang together better than the columnar zones.โ€ They are also โ€œassociated with cliff bands,โ€ he addedโ€”the resistant tops or layers found in rocks.

An entablature zone with its irregular fracture pattern.

Other Lavas

I askedย  Jim if other lavas had jointing patterns as you see with basalt.

โ€œYou will see jointing patterns in all lava flows,โ€ he responded. โ€œEven stickier flows you associate with Hood or Helens have all sorts of cooling fractures.โ€

โ€œโ€ฆBut in basalt flows,โ€ he went on โ€œthe jointing patterns are bolder and more distinctive because they flow farther.โ€

Columns and College

As we continued along the trailโ€”tracing the contours of the cliffside, we passed by a nice-looking column of basalt laying on its side.

As we walked, Jim told me briefly about how he got started in his career in geology and how long he has been working.

โ€œI got my undergraduate degree 40 years ago,โ€ he shook his head disbelievingly.

Graduate school followed as it was difficult to find a job without it, and eventually, he landed a job with USGS.

โ€œLook,โ€ I pointed to another column laying on its side.

 โ€œA perfect hexagonal cross-section,โ€ Jim noted as I snapped a picture.

One of the columns found along the trail.

Making Contact

Jim and I continued up the trailโ€”zig zagging through a rocky cliffside and into the burnt forest. An assortment of shrubs and herbaceous plants lined the pathโ€”my favorite, the red thimbleberry, ripe and ready to taste.

However, Jimโ€™s eyes were focused on the rock as we made our way up. He was looking for a particular feature in the rocks we were walking onโ€”a flow contact. An important part of mapping out the area requires knowing when one flow starts and another beginsโ€”this is the flow contact.

โ€œIt is probably a flow contact up there,โ€ Jim pointed up the trail.

Jim explained that there are many clues to finding a flow contact.

As you reach a flow contact, the rocks look different because the tops and bottoms of flowsโ€”as they interact with the surface get gas bubbles trapped in them. This creates a โ€œvesicularโ€ or โ€œbubbly texture,โ€ in the contact zone.

It wasnโ€™t long before we reached the flow contact Jim had suspected from below.

He pointed to the cliff face.

โ€œYou can see there is an entablature zone, flow contact, and then columns,โ€ He remarked. โ€œIt looks like two flows.โ€

Jim gestured to the vesicles observed in the rocks where they met in the flow contact zone, as well as a thin layer of weathered rock that lay in between.

This layer is known as a โ€œweathering horizon,โ€ and is another feature of flow contacts.

The tops of many of these basalt flows were weathered during the many thousands of years before the next flowโ€”rain, sun, fire, vegetation growth, and soil formation breakdown the flow top, leaving distinct weathering horizons that were later buried by the next lava flow.

Vesicular rock found near a flow contact.

Geological Unit

Looking at the map, Jim hypothesized that we were at the base of the Downey Gulch flow and moving into Grouse Creekโ€”the name given to a younger basalt flow in the overall sequence.

โ€œWhat makes a unit?โ€ I asked Jim.

Jim explained that each geological unit shares a similar chemistry and are thought to be close together in time.

โ€œOriginally, these flows were defined by their magnetic orientation,โ€ Jim continued.

Basically, he explained, the magnetic field has switched at various points during the emplacement of the lava flows. A magnetometer was used to determine the direction of the magnetic field when the flow was emplacedโ€”during a normal orientation or reversalโ€”the sequence of orientations helped to correlate individual flows from place to place as well as to deduce their timing. These correlated flows were then defined as a sequence of geological units.

โ€œWe are walking through a magnetic field right now,โ€ Jim proclaimed.

Unstable

As we hiked, it was hard to ignore the blackened trees standing along the trail. The Oneonta Trail is one of many trails in the gorge that was heavily impacted by the Eagle Creek Fire of 2017.

In general, the gorge is an area โ€œsusceptible to rock slides,โ€ according to Jimโ€”only the fire has made it โ€œeven worse.โ€

Fires are impactful, especially a couple of years after the fire. The fire kills the trees that normally stabilize the upper part of the soil. As the roots of the trees begin to lose their integrity over the years, that is when rocks and other debris can come loose and fall.

โ€œWe have done a bit of work on how the fire has affected the slope processes in the gorge,โ€ Jim remarked. โ€œIt really is important work.โ€

โ€œIn January 2021, a woman was killed at the Ainsworth exit by a debris flow,โ€ Jim confided. โ€œThat area has been a constant source of debris flow.โ€

Signs have been erected throughout the burn area for this reason. When entering a burn area, one should prepare for hazards and know the risks.

Burnt trails along the forested trail heading toward Ponytail Falls.

Columbia River Course

Speaking of water, as Jim and I headed around a bend in the trail, Ponytail Falls came into view. The small falls poured over the basalt cliff into a deep pool below.

The trail took us behind the falls into a cavern where we could get a look at some sediment that was probably present before the lava flow poured through.

โ€œLooks like some sort of floodplain or silty or maybe even a bog,โ€ Jim speculated as he scraped at the baked sediments. 

Sediment deposit below Ponytail Falls.

โ€œIt is pretty cool to see exposures like this,โ€ he proclaimed. โ€œPaleogeography is what I am interested inโ€ฆ the area between the flows.โ€

Jim explained how looking between flow deposits can tell you a lot about landscapes of the past. Gravel, for example, indicates a river flowed throughโ€”the different sizes of clasts, details about the flow.ย 

One of Jimโ€™s projects is to map out the course of the Columbia River over time by studying these sorts of sediments.

โ€œThe Columbia has been roughly in the same place the last 50 million years,โ€ Jim said. But it has wiggled around a bit. Over the last 16 million years the river has been displaced North. In fact, Columbia River Basalt Flows through Silver Falls show that the river came through near Salem during the early phase of the Columbia River basalt flows. 

Because the Columbia River system starts at the Continental Divide in the Rocky Mountains, there are a lot more exotic rocks from the east that can be found in the sediments of the Columbia. Mica flakes, mainly from older rocks to the east, are a distinctive component of Columbia River sediment deposits.

The small grain size of the sediment found in the waterfall alcove didnโ€™t show any signs of mica. Whatever stream systems were attached to the body of water that was here in the past must have been more localized.

View looking out of the alcove behind Ponytail Falls.

It’s My Fault

As we walked away from the waterfall, I noticed a large crack in the lava cliff the water flowed over. I asked Jim about it. 

โ€œThose could just be from downcutting,โ€ said Jim. As the stream cuts down on the rock, the material is eroded away, and the land is decompressed enough that it may lift and crack.

However, though not likely in this case, cracks can also be formed through faulting. And in the Columbia River Gorge, there are a lot of them.

Jim explained how the state of Oregon is essentially rotating clockwise. The Columbia River is bounded by North trending faults that through rotation are offset laterally, resulting in a collection of strike-slip faults that move land to the west northward.ย 

โ€œEveryone knows about the subduction zones,โ€ said Jim, โ€œbut these younger faults are a seismic hazard.โ€

โ€œOne of the main motivations [for mapping the Gorge],โ€ Jim continued, โ€œis to better understand the seismic and other hazards.โ€

Jim told me about a fault scarp that was discovered just east of Cascade Locks recently. The scarp here is largeโ€”five to six feet tall by Jimโ€™s estimationโ€”and would have been the result of a significant earthquake event.

โ€œOne idea is that the shaking might have triggered the Bonneville landslide,โ€ said Jim. A landslide that was large enough that it blocked the Columbia River Valley, creating the legendary Bridge of the Gods and the Cascade Rapids.

โ€œWe know from tree ring work and carbon dating that the landslide occurred in the 1440s,โ€ said Jim.

With more faults being discovered all the time in the Gorge, the question is when will the next earthquake (and possibly a major slide) occur.

Finding Fault

As we continued away from the falls, I asked Jim how geologists usually identify a faultโ€”are they easy to find?

โ€œThere has been a revolution in topographic resolution,โ€ Jim responded. โ€œWe can see the landscapes with what we call LiDAR.โ€

LiDAR works by shooting a laser down from an aircraft that can pick up on the subtle variations in the Earthโ€™s surface.

โ€œMore and more of Oregon has been flown for its topography,โ€ said Jim. Now there is imagery of about two-thirds of Oregon, according to Jim.

โ€œItโ€™s like crack for geologists,โ€ he smirked.

Jim also mentioned that it may not always be possible to identify scarps/faults on such steep topography as you find at the Gorge.

โ€œThe terrain is so steep,โ€ said Jim, โ€œso scarps donโ€™t last long; things get chopped up.โ€

Either way, Jim is certain of at least some faultsโ€”the nearest being at the Ainsworth exit.

A Room with a View

Jim and I passed by another striking entablature zone, before reaching a junction to the right towards a viewpoint. We decided to stop for a quick detour. 

At the end of the short trail are a memorial and a nice view looking to the northeast.

โ€œWell, you can see the toe of the Bonneville landslide,โ€ Jim noted, pointing to a hummocky peninsula jetting out a bit into the Columbia.

โ€œIn this areaโ€ฆthe uplift has been the greatest,โ€ Jim explained looking out toward the Columbia River. โ€œEverything has arched up 3,000 feet between the Portland Basin and the Dalles.โ€ 

Yet, โ€œThe river has been at or above sea level the whole time,โ€ continued Jim. โ€œIt has been cutting through the whole timeโ€ฆ as it cuts through, it undermines the sides.โ€

Additionally, below the lava flows is the Eagle Creek Formationโ€”a mixture of volcanic sediment from Western Cascade eruptions 20 to 30 million years ago (mya). This underlying material also tilts to the southโ€”giving the Washington side of the Gorge its more gradual slopes compared to Oregonโ€™s steep terrain.

The combination of uplift and a weak, incoherent underlying geology that tilts make the area landslide prone.

โ€œAll of that terrain is landslide terrain,โ€ proclaimed Jim, the powerful Columbia rolling past as we spoke.

Columbia River viewpoint with Beacon Rock to the left and other peaks in the distance.

Beacon to the Past

As we looked out at the scenery, Jim pointed out other features from the viewpoint. One of the most prominent being Beacon Rock.

Long after the flood basalts spread across much of Oregon and Washington, volcanism returned to the region in the form of a large volcanic field about 3.6 myaโ€”reaching from the West Hills of Portland all the way to the Deschutes. Cinder cones, lava flows, and shield volcanoes have been identified in the volcanic field, including Larch Mountain in the Columbia River Gorge Scenic Area and Mount Scott in Portland.  Though Jim couldnโ€™t point to an exact source of the volcanism, he was fairly certain it was in part related to subduction.

โ€œBeacon Rock is the youngest in the basin,โ€ said Jimโ€”erupting about 60,000 years ago. Once a small cinder cone, much of the unconsolidated material that surrounded its volcanic neck has been washed away by massive ice age floods.

Now a bare rock sits along the northern shores of the Columbia. 

Missoula Floods

This brings us to one of the most recent installments of the Columbia River Gorgeโ€™s geological story, the Missoula Floods.

Around 20,000 to 15,000 years ago, Glacial Lake Missoula would form as the Cordilleran ice sheet flowed south from Canada creating an ice dam that blocked the Clark Fork River drainage in Montana. Periodically, this ice dam would fail, and flood waters would pour out of Glacial Lake Missoula through Washington and Oregon as it followed the Columbia River drainage.

The effects were dramatic. Scablands were created through much of eastern Washington, as the water tore up the soil and carried it downstream where much of it settled in the Willamette River Valley or was carried out to the Ocean.  The gorge played a significant role in controlling the flood flows.

โ€œThe Gorge was a constriction or nozzle the floods were forced through,โ€ Jim explained. โ€œIt was mainly erosive through here.

Inverted Topography

After enjoying the views and trying our best to identify the peaks on the horizonโ€”is that Defiance orโ€ฆ?โ€”we turned back to the main trail leading deep into the basalt cliffs that make up the Oneonta Gorge.

As we looked up at the steep cliffs, we could see another entablature, as well as a couple of flows. Jim referred to his geological map to see if we had moved into a different flow unit.

โ€œNope, still Grouse Creek,โ€ he concluded.

However, looking back and up to the top of the canyon walls, Jim pointed out a lava-capped ridgeโ€”Franklin ridge, he called it.ย ย 

Franklin Ridge is the result of a local volcanic center, Jim explained, erupting somewhere around 1-3 million years ago. At that time, the lava flow was down a valley that led to the Columbia River. But since the lava flow was uplifted and the surrounding rock eroded away, the lava-filled valley bottom โ€œis now a ridge.โ€

โ€œA topography reversal,โ€ Jim called it, or inverted topographyโ€”essentially the low points become the new high points.

โ€œKind of cool,โ€ Jim remarked.

Franklin Ridge is an example of inverted topography.

Water

Jim and I continued to make our way on the dry dusty trail.ย  Soon we passed by a moss-covered basalt rock face dripping with waterโ€”not an unusual sight to see.

I asked Jim about what we were seeing.

โ€œIt is probably emerging at the top of this flow,โ€ said Jimโ€”at a flow contact.

โ€œWater moves slowly through solid flows,โ€ Jim explained, โ€œseeping through the cooling joints. It moves more rapidly between flows.โ€

This is visible as wet stripes in the contact zones between basalt flows, especially in the arid east where the moisture contrasts well against the dry rock. You can literally see where the moisture is in the rock, according to Jim.

Transportation of water through the Columbia River Basalts varies a lot but can be rather slowโ€”sometimes taking thousands of years to emerge at a contact zone.

โ€œSome of the water in the layered basalt, especially in the east, certainly dates from the last ice age,โ€ said Jim.

Understanding the basalt stratigraphy for the purposes of managing water resources is another reason mapping the Columbia River Gorge is important work. Knowing the flow contacts and the connections to each local aquifer system, are all part of ensuring water use is sustainable over time. 

Lower Falls

Jim and I cruised past another flow topโ€”โ€œSee how vesicular it is?โ€ he questioned.

Then, we passed an entablature holding up the cliffs before passing over a deep gorge and reaching the lower falls.

Water ran smoothly down a narrow slide of lava littered with tree trunksโ€”the water cut deeply into the erosion-resistant basalt to form a V-shaped valley.

The Lower Falls reminded me of just how powerful water is as an erosive agent. The canyon walls were high above us. Oneonta Creek had done a fine job cutting down.

Lower Falls careening over basalt rocks.

Ortley Flow

After climbing a bit deeper into the canyon, we passed by a wilderness sign and an unusual-looking rock face. Jim checked his map and sure enough, we had reached the base of the Ortley flow.ย 

Jim pointed out the differences in morphology that were clues that we were entering a different flow unit. 

โ€œOne thing that is our first hint is it is oriented sideways,โ€ said Jim.  โ€œCooling fronts are coming from the sides.โ€

Jim explained that some of the Ortley lava flow must have been locally channelizedโ€”flowing through an old river or creek bed.

Vertical columns form slowly as they cool from the bottom and top.  These sideways columns were the result of multiple cooling fronts on the sides of the channel.

Columns oriented sideways; part of the Ortley flow.

The bottom of the flow also looked different. Rounded blobs of broken glassy rock were visible, a.k.a. pillow basalt. As Jim explained, when lava encounters water it will either brecciate (break apart into angular fragments) and may form โ€œpillows.โ€

โ€œHyaloclastites,โ€ said Jim, referring to the glassy rocks. โ€œThe pillows are direct water features.โ€

Pillow basalt on the trail. A result of the interaction between lava and water.

Interflow Zone

We walked on up the trail. Only we hadnโ€™t made it far when Jim stopped suddenly.

โ€œI am just noticing some rounded clasts,โ€ he said. โ€œIt is making me think there is probably an interflow zone with gravel coming out of it.โ€

This was Jimโ€™s bread and butter. He started digging through the rocks with intense focus.

โ€œIs there anything other than basalt?โ€ he wondered. โ€œAny hint of the Columbia?โ€

The rocks were large and rounded, embedded in a โ€œreally weathered matrix.โ€

Interflow zone with a really weathered matrix.

Jim speculated that the interflow zone was probably a steeper tributary to the Columbia that was back flooded when lava came pouring through the Columbia River drainage.

โ€œThis might be related to the pillows we saw earlier,โ€ Jim hypothesized.

He continued poking around in the matrix for loose material until he found a rock that he thought โ€œlooked different.โ€

He picked it up with the thought of cracking it open for further examination.

โ€œWhy did you pick that one up?โ€ I asked, curious about what he was seeing.

โ€œIt is light colored,โ€ he said with a smile.

It was as simple as that.

Jim and his light colored rock.

Triple Falls

Eventually, we reached Triple Fallsโ€”a three-pronged falls flowing over Columbia River Basaltsโ€”and our destination for the day. We wondered at the strange flow pattern of Triple Falls and marveled at its beauty.

Triple Falls is classified as a segmented waterfall with flows that drop vertically into a large plunge pool below. Each of the segments flows between bulbous volcanic rock barriers. Were these rocks more resistant than the rocks the water poured over?

Just past the falls, we crossed a bridge and stopped for a short lunch break before heading back to our cars.

Boot Prints in the Sand

On our way back Jim and I talked about all sorts of thingsโ€”from travel to hiking adventures and pet projectsโ€”as we retraced our steps.

Eventually, though, the conversation turned back to the geology of the Columbia River Gorge as something shiny caught Jimโ€™s eye.

โ€œThis is interesting,โ€ he said reaching down toward the dusty ground. โ€œThis is Columbia River sand.โ€

The light tan color of the earth faintly shimmered as mica flecks in the sediment caught the sunโ€™s rays, Jim explained that the Columbia River mica flakes are large and platy in structure.  When light hits them just right, they shimmer. 

โ€œNot sure how it got here,โ€ Jim said quizzically. โ€œIt could have blown inโ€ฆor been brought in by the Missoula floodsโ€ฆ or it could be coming out between flows.โ€ There was no way of knowing.

Columbia River sand on the trail.

Puzzle

The rest of the hike back went by quickly. Time seems to slip by when you are heading downhill. And before I knew it, we were back at the trailhead saying our goodbyes.

Jim was a lot of fun to hike with. Every time we ran across something new, it was like finding another piece of a geology puzzle.

There is a lot we know about the Columbia River Gorge. Its unique geological history means it has attracted a lot of attention over the years.  Yet, there are still a lot of pieces to the puzzle to be found.

Finding those pieces and fitting them together is what geologists, like Jim, do. Offering a glimmer of understanding to folks like meโ€”to help us see the mica through the sand.ย ย 

Jim O’Connor is a research geologist with USGS. He earned a Bachelor of Science degree in Geology at the University of Washington before going on to earn an M.S. and Ph.D. at the University of Arizona. Jim has been with USGS since 1991 where he has focused his efforts on understanding the processes and events that have shaped the Pacific Northwest.

Hike with a Botanist at Rough and Ready Botanical Wayside 

Rough and Ready Creek near the start of the trail.

Hiking along the dry, dusty trail that leads out onto the Rough and Ready Flat on a hot summer day, it is hard to fathom how ecologically significant it is. Strewn with rocks and sparse vegetation, including a few straggly-looking trees, it is no Amazonian rainforest. Yet, it hosts a spectacular array of botanical delights that deserve a closer look.

Rough and Ready is one of only about 200 biologically outstanding areas in the United States and is home to the greatest amount of plant biodiversity in the State of Oregon. So, though it may appear desolate, it is a botanistโ€™s dreamscapeโ€”full of a variety of native and endemic species!

Of course, I had to check it out! This is what brings me back to that dry dusty trail, where I met with BLM Botanist, Amanda Snodgrass, to learn more about Rough and Ready Botanical Wayside near Cave Junction, OR, and what it is like to be a botanist.

The Hike

  • Trailhead: Rough and Ready Botanical Wayside
  • Distance: 0.3 mile interpretive trail with the option to extend the hike by following established road tracks.
  • Details: Ample parking at trailhead. Covered picnic table is available at the trailhead with another table near the end of the trail. No restroom.

On Being a Field Botanist

It was early morning but already warm as Amanda and I strode across Rough and Ready, taking the only trail out onto the flat lands.

Energy high, Amanda told me a bit about her background as a Botanist.

Originally from Iowa, Amanda moved to the area in 2018 and only recently, about eight months ago, took up her post as a Field Office Botanist for the BLM Medford District. She had become fascinated by plants at a young age during a trip to Hawaii and has enjoyed studying and learning about them ever since.

โ€œI like plants. I am a plant person,โ€ Amanda remarked. โ€œThey are pretty and resilient, and they donโ€™t talk back.โ€

Zingers, like this one, seemed to tumble out of Amanda. For a self-professed plant person, she was rather personable. Even though she claimed, โ€œplant people usually arenโ€™t people, people.โ€

I asked Amanda to explain more about what it is like to be a โ€œplant person,โ€ or more professionally speaking, a field botanist.

โ€œI oversee the botanist program for the Grants Pass field office,โ€ Amanda explained. โ€œI do a lot of fieldwork, but I also do a lot of paperwork.โ€

Most of that paperwork is around managing botanical resources in terms of NEPA (National Environmental Policy Act). BLM land is managed for multiple uses, so that means it may be used for a variety of activities, like recreation, mining, or extracting forest products. Amandaโ€™s job is to ensure important botanical resources are protected while still allowing for these activities.

โ€œI still get to do a lot of fun stuff, too,โ€ said Amanda, โ€œlike plant surveys, monitoring, restoration work, and a lot of invasive species management.โ€

According to Amanda, the job is โ€œ50/50,โ€ about half of her day-to-day is paperwork and the other half is with the plants. It was clear what part is her favorite. 

Amanda posing for a picture at Eight Dollar Mountain.

Meandering

As we meandered down the trail, Amanda described some of what goes into surveys and monitoring for a field botanist.

One of the hallmark surveys she conducts is a โ€œclearance survey.โ€ These are done whenever there is going to be a disturbance in the areas to check for rare species, as well as gather basic information on habitat type and species associations to measure overall ecosystem health.

Long-term monitoring, revisits, plots, and transectsโ€ฆ all of these are part of a botanist day to day fieldwork.

Perhaps most intriguing was Amandaโ€™s mention of a โ€œmeandering survey.โ€ โ€œIt is intuitively controlled,โ€ she explained. Essentially, you are looking at the habitat and predicting what species may be present, and then wander around to see if you can find said species.

โ€œItโ€™s a botany special,โ€ smirked Amanda.

Rough and Ready

We ambled further into Rough and Ready.

I began to take notes of the ecosystem around us.  We passed by a view down to wide and braided, Rough and Ready Creek rushing over a bed of cobbles. Low shrubs, mostly ceanothus ran in clumps along the trail with wide sections of open ground where grasses and herbaceous plants grew in scarce quantities. A few pine trees marked the canopy, separated by 10s-of-feet. Flashes of color came from a few wildflowers. The ground itself was gritty, and rocky, appearing less than hospitable to the vegetationโ€”yet stuff was growing.

According to Amanda, Rough and Ready is a part of the Klamath-Siskiyou ecoregion known as the Illinois River Valley. To start, these ecoregions are known for their botanical diversity. But when you add in the unique characteristics of Rough and Ready, the biodiversity is even more amplified.

โ€œIt is one of the most botanically biodiverse ecosystems in North America,โ€ said Amanda. While in Oregon, is considered the most botanically diverse. That is nothing to snuff at.

So, I asked Amanda, โ€œWhy?โ€ What is it about Rough and Ready?

โ€œIt has its own special characteristics,โ€ Amanda responded.

She went on to explain how it is the unique geology, hydrology, and climate that help provide opportunities for diversity to flourish. 

Geologically speaking it has serpentine soilsโ€”โ€œaged metamorphic soil, high in minerals like magnesium and nickel.โ€

Heavily mineralized, ultramafic soil is difficult for most plantsโ€”making important nutrients like calcium and nitrogen unavailable, while subjecting plants to heavy metals at toxic levels. 

โ€œMany plants canโ€™t grow in it and the ones that do often can only grow on it,โ€ Amanda elaborated. 

Additionally, Rough and Ready is unique hydrologically, receiving more rainfall compared to adjacent areas.

โ€œIt can get over 100 inches of rain a year!โ€ Amanda exclaimed.

Water is carried down from the mountains and distributed onto a broad alluvial floodplain and alluvial bench which hosts a variety of species.

The climate at Rough and Ready is also variable throughout the watershed.

โ€œIt has several elevations,โ€ stated Amanda.

With influences from the Pacific Ocean, Coast Ranges, Cascade peaks, and the deserts of the Great Basin, the area has a variety of habitat zones, determined by the physiology and changes in precipitation levels that shift with elevation.

All in all, this makes Rough and Ready โ€œsecond in North America for endemism,โ€ according to Amanda. In other words, there are a lot of unique species here that you wouldnโ€™t find anywhere outside the region.   

โ€œAre we going to find any of them?โ€ I asked.

 โ€œYes, they are all around!โ€ exclaimed Amanda jubilantly.

Pining for Pines

At this point, we reached a tall berm of ultramafic, heavily mineralized soil.

โ€œWell, the trail work must have stopped here,โ€ smiled Amanda, as we climbed over the barrier.

After successfully navigating over the dry sluff of soil, it was time to get down to businessโ€”the business of plants.

โ€œAre these all Jeffery Pines?โ€ I asked Amanda, pointing to the nearest tree that stood a few feet off the trail.

โ€œYes,โ€ she responded, โ€œwe have a really high percentage of Jefferey Pines. Though in this spot they tend to be straggly.โ€

Again, the soil was doing its thingโ€”binding the nutrients and stunting growth.

Amanda was a bit surprised by my enthusiasm for the trees, but she was willing to humor me.

Jefferey Pine (Pinus jeffreyi) is one of only two species of pine that has needles bundled in groups of three in Oregon. The other species, Ponderosa Pine (Pinus ponderosa), is much more common and also found at Rough and Ready. So, how can one distinguish between these two look-alikes?

โ€œGentle Jeffery,โ€ Amanda musedโ€ฆ โ€œand Poky Ponderosa.โ€

She went on to explain that one of the best ways to tell these two pines apart is by their cones. Ponderosa Pineโ€™s cones tend to be larger, at least 6 inches with more pronounced sharp prickles on their scales; while Jeffery Pineโ€™s cones are usually smaller than 6 inches, with scales that point inward. The needle colors can also be a distinguishing factorโ€”Jeffrey Pines have greenish gray needles and Ponderosa have bright green to yellow needles.

โ€œSometimes you can smell them,โ€ she added. Ponderosa Pine usually has a sweet scent like pineapple or vanilla.

Of course, this is one place where relying on all your senses might come in especially handy.

โ€œA lot of places there is only one type of pine,โ€ Amanda extolled. But, โ€œOregon is home to roughly 30 species of conifers, and the Klamath-Siskiyou Ecoregion is home to 36 species of conifer across Southern Oregon and Northern California.

Ah, for the love of conifers! This is my sort of place.

Jeffrey Pines are common at Rough and Ready

Keying in on Family Ties

Head out of the trees, Amanda soon directed my attention downward. Colorful puffs of yellow and bright white grew from long stems along the trail.

โ€œBuckwheat,โ€ Amanda confirmed.

But how can you tell? It isnโ€™t easy. For the buckwheat family, in particular, you may even need a microscope to get down to the species level.

โ€œIt can take hours to key out a plant,โ€ Amanda explained. โ€œOne thing that happens in this ACEC (area of critical environmental concern) is there is a lot of hybridization.โ€ In other words, a lot of mixing of genes between species that can make keying out a species even more difficult.

However, with the right tools, including a good identification book or app, it can be done. Amanda recommended the โ€œOregon Wildflowersโ€ App put out by Oregon Flora, as well as several regional books, including A Flora of California by Munz and The Jepson Desert Manual by Baldwin, et al. 

Amanda pulled out a species list to help narrow things down, and after some careful study and using the wildflower app, was able to identify the yellow buckwheat as ternate buckwheat (Eriogonum ternatum) and the white as sulfur buckwheat (Eriogonum umbellatum).

Okay, so getting down to species may at times become challenging, especially in biodiverse areas. There is at least eight known buckwheat in Rough and Ready, for example. But there is something to be said for identifying to family-level as well. 

Family groups often share some common characteristics. This is true of the buckwheat family as well.

โ€œA lot of the times buckwheat have a basal rosette and then bare stems that come up with these puffs of flowers that turn color over time,โ€ Amanda described. โ€œThe leaves are also often spoon-shaped,โ€ she added.

โ€œSpoon leaves,โ€ I let it roll off the tongue. What a way to keep things straight!

โ€œThere is all the formal terminology,โ€ continued Amanda, โ€œbut I think it is helpfulโ€ to use your own terms as well to help distinguish and remember individual plants.

Other families share other characteristics. A few of the families found at Rough and Ready Amanda described include: The Allium Family with their clusters of flowers and pungent linear leaves. The Asparagus family with lance-shaped leaves and parallel venation and often bell-shaped flowers. And the Lily family with 6 petals with three to 6 stamen and leaves often arising from low to the ground.

Ternate buckwheat (Eriogonum ternatum)

Spring Flowers

Amanda and I continued to note the various wildflower species along the trail as we hikedโ€”lavender, spiky-looking ookow (Dichelostemma congestum) and purple with sharp, curved petals, Harvest Brodiaea (Brodiaea elegans). We also discovered a small rock fern called Indianโ€™s dream (Aspidotis densa)โ€”what a name!

Eventually, we reached a junction and headed left, following the powerlines on an old roadbed toward the river.

Speaking of colorful wildflowers, I asked Amanda when should people visit Rough and Ready for the best wildflower show.

Though there was plenty to see in these early summer months, Amanda recommended returning in spring.

โ€œSpring is nice because you get the first wildflower blush,โ€ she said. โ€œEarly spring wildflowers have a high percentage of endemic species.โ€

Many of the Irises and Calochortus (including mariposas) show up in springโ€”both of which have endemic species.

However, according to Amanda, any time is a good time to visit.

โ€œWhat is cool about this site is it changes throughout the year and as you head up in elevation.โ€

Indianโ€™s dream (Aspidotis densa).

Shrubs

However, there are some species that can be seen year-round. In addition to the conifer species, hardwood trees and shrubs are also year-round residents of Rough and Ready.  And we saw a lot of them on the trail! So many that, of course, I asked Amanda about it.

She patiently humorous me as we walked along noting species, like deer brush (Ceanothus integerrimus), birchleaf mountain mahogany (Cercocarpus betuloides), and spicy-smelling California Yerba Santa (Eriodictyon californicum).

โ€œIt is known as โ€˜holy weedโ€™ or โ€˜holy herbโ€™ and is the borage family,โ€ shared Amanda regarding the California Yerba Santa.

We walked past an unusual-looking oak. 

Whipping out the plant list, Amanda stated: โ€œWe have seven oaks here in Rough and Ready.โ€

She then pulled open her Oregon Wildflower App to see if she could narrow things down.

โ€œI think it is Brewerโ€™s oak,โ€ said Amanda after some deliberation. โ€œThe Brewerโ€™s Oak is a hybrid of the Oregon White Oak.โ€

It looked Oregon White Oaky to me.

Possible Brewer’s oak leaves.

Amanda admitted she rarely spends much time on shrubs, as we ran across a myriad of manzanita.

โ€œThere are three types of Manzanitas here,โ€ said Amanda.

Again, she worked to narrow down the ones surrounding us. โ€œI think it is hoary manzanita,โ€ she proclaimed, noting the wooly twigs and branches.

 We didnโ€™t attempt to identify any of the others. Apparently, manzanita are known to hybridize, making identification even more complicated. Those darn shrubs!

Waters Edge

We continued down the โ€œpowerline trail,โ€ passing a cluster of California poppies (Eschscholzia californica). Soon, we reached the rocky shores of Rough and Ready Creek.

Here we decided it was best to loop back. So, we carefully, balanced along the rocky creek edge, passing by a camas lily as we went.

Following the waterโ€™s edge, our garden of flowers was even more sparse. We focused on the rocks under our feet as we hopped along.

โ€œSo, these are all very serpentine rocks,โ€ remarked Amanda as she picked up a rock to show me. โ€œSee the green color. There is asbestos in these rocks.โ€

There were also a lot of reddish rocksโ€”another serpentine rock, only derived from peridotite, instead of serpentinite which yield the more dazzling green colors. 

All these rocks weather to a reddish-colored soil characteristic of serpentine geology.

Rough and Ready Creek with a cobble bank.

Adaptations

We carefully clambered over the colorful rocks, careful to avoid the delicate desert soil. It was hot with the sun and only a few clouds dancing overhead.

Which brings us right back to the question: how do species adapt to this harsh environment? How do they deal with, as Amanda called them โ€œasbestos rocks,โ€ among the many other challenges?

Amanda and I discussed the problem throughout our hikeโ€”touching on the various challenges of the region.

As discussed earlier, serpentine rocks are characteristically high in certain minerals, like heavy metals. To overcome this, many species of plants might exclude heavy metals, reduce their transfer through the plant, or concentrate it in certain tissues at unusually high levels. 

When it comes to living in a relatively dry, sunny environmentโ€”where evapotranspiration is highโ€”plants take different approaches to reduce water loss and protect from the sun.

โ€œMany of them have leathery leaves or coatingsโ€ฆโ€ said Amanda, and/or โ€œdifferent types of furry leaves and stems.โ€

Leathery or coated leaves help reduce water loss by reducing evaporation, as well as provide insulation from the sun and cold. While the hairs of furry leaves are helpful for reflecting sunlight and reducing airflow and drying. 

Wildfire

Wildfire is another challenge for species in the Klamath-Siskiyou ecoregion.

โ€œThere are three kinds of speciesโ€”species that tolerate wildfire, those that donโ€™t, and those that require it,โ€ said Amanda. โ€œHere, many require it.โ€

Those that require fire might need it for a variety of reasons. Some conifer species have serotinous conesโ€”cones that require fire to open and release seeds. Many herbs and forbs have seeds with hard seed coats that need fire, or some other harsh environment, to break that coat to germinate.

โ€œA lot of plants are adapted to fire because it makes nutrients available,โ€ Amanda continued. โ€œAfter a burn, big blooms of vegetative growth often occur.โ€

Other species, like oaks, will resist fire. Oaks have thick bark that protects them from lower-intensity fires. While, manzanita, on the other hand, burns fast and hot, but can regenerate easilyโ€”resprouting from burls at the base of the shrubs.

However, Amanda warned that changes in the fire intervalโ€”the amount of time between firesโ€”could have negative effects on some species and their ability to tolerate fire.

โ€œBurn too frequently, nothing reestablishes,โ€ she said, โ€œnot enough, and there is too much competition.โ€

Non-native species also often arrive following a fire which can complicate things further. Non-native grasses, for example, often come in following fire. The problem is that these grasses create an ecosystem prone to more fire. More fire means more grasses, and on and on.

To sum up, native species are adapted, not only to fire, but to a specific fire regime and a very specific plant community. Changes in either of these can lead to native ecosystem loss. 

Why Plants Matter

As we continued to traverse the cobbles, having seen some of the diversity of species to discover at Rough and Ready, I asked Amanda why we should care about all these plants anyway? Do plants really matter?

This was her response:

โ€œPlants are foundational components in high-functioning systems that support other species and the human population. They are the fundamental backbone. All our materials come from plants, they are the source of food, clothes, drugs, material, and they are also an indicator of ecosystem health.โ€

She went on:

โ€œDiversity is stability. It is easy to overlook plants because they donโ€™t make any noise. But, they are all around us and necessary for the survival of all species. I like them because they are quiet underdogs. But really, they are important and we need to preserve the diversity of different species.โ€

Amanda continued to explain how, despite their immense value to the ecosystem and our human societies, plant populations are being threatened by climate change, habitat loss, and many other stressors.

โ€œWe need people to speak for them,โ€ proclaimed Amanda. โ€œIt is important to have people that care and are willing to support the plants and their communities because we all depend on them for survival.โ€

You could really hear the passion and concern behind Amandaโ€™s words.

โ€œCheese-fest?โ€ she smiled, then shrugged. โ€œItโ€™s just how I feel.โ€

I smiled and kept on rock hopping. Did I just hear a mic hit the floor? 

Keep a Close Watch

Looking out for the botanical resources on BLM is a big part of Amandaโ€™s job, but this has proven difficult as threats are often mounting.

Amanda expressed concern for the plants at the Rough and Ready.

โ€œThe other thing about plants is because they are slower at migrating, it is easier for them to just be gone.โ€

She used several examples of how species tend to be closely connected to their environments. Again, she reminded me how serpentine species need serpentine soils to survive. Then there are saprophytic plants, like snow plants and ground cones, that need specific trees with a specific microbiome to be happy.

โ€œEveryone loves the calypso orchids,โ€ she expounded, โ€œbut you canโ€™t pick them up and move themโ€ฆthey are connected with the mycorrhiza of the soil.โ€

Then, there are threats from โ€œtheir own kindโ€โ€”invasive species take up a lot of Amandaโ€™s time.

โ€œThey are a major threat to the integrity of the ecosystem and it takes a lot of time and energy to make progress on it,โ€ she explained regarding her efforts.

โ€œWhat else?โ€ I asked. โ€œWhat are the biggest threats to the plants here?โ€

Amanda spoke of the challenges that her district specifically faces, including illegal marijuana grows, offroad recreation, and illegal dumping.

โ€œFrench flat is one of our highest intact pieces of habitat for Lomatium cookii, a federally listed species,โ€ said Amanda. โ€œAnd we are constantly having trouble with off-road vehicles.  There are a lot of burned-out cars there, โ€she sighed.

As if on cue, we crossed by some trash on the trail. 

โ€œI lose faith in humans sometimes,โ€ she remarked as she bent down to pick it up.

Enjoy Plants

At this point, we decided to begin veering back to the normal trail, but before we made it over the rocky rise, I asked Amanda for adviceโ€”how can people enjoy plants?

She had a lot of ideas, but her main message was simpleโ€”leave a place better than you found it. Care about plants and share how your care with others.

She also suggested making small goals to help plants.

โ€œThink of your own yard. Do you have some native flowering plants?  That is your base. There is a food chain that connects all the way up from there.โ€

And, of course, spending time with plants, was her last piece of advice.

โ€œVisit a local park or somewhere nearby and instead of just walking, stop in a spot and look around. Count how many different plants you think you see.โ€

Amanda recommended reaching out to organizations, like a local native plant society, to learn more about the plants. 

โ€œPeak curiosityโ€ฆ โ€œ After all, once you have truly seen a plant โ€œyou canโ€™t unsee it!โ€

Species List

Amanda and I carefully made our way up the hill and back to the main path. As we walked, I asked Amanda if she could give me a short list of species for the area that she โ€œcanโ€™t unsee.โ€ What species could someone visiting the Klamath-Siskiyou learn to appreciate first?

This proved to be the most difficult question of the dayโ€”she came up with a few, but later sent me her complete list.

First, the trees. Pacific Madrone (Arbutus menziesii), Brewerโ€™s Spruce(Picea breweriana), Port Orford Cedar(Chamaecyparis lawsoniana), and Pacific Yew (Taxus brevifolia) were Amandaโ€™s picks. 

โ€œThey are easily recognizable, native, and all have some personality or rich history,โ€ said Amanda.

Pacific Madrone, for example, has a hard, dense wood with โ€œeucalyptus-like bark,โ€ both smooth and peeling.

Later she added knobcone pine (Pinus tuberculata) to the listโ€”as it is one that is especially dense at the Oregon/California border.

Next, shrubs. Oregon Grape (Mahonia aquifolium) was her first pick.

โ€œIt is an indicator of a native ecosystem,โ€ said Amanda of the Oregon Grape. โ€œItโ€™s fruits edible, roots medicinal, and pollinators love it!โ€

Later she added: Huckleberry Oak (Quercus vacciniifolia), Deer Oak (Quercus sadleriana), and Hupa Gooseberry (Ribes marshallii).

Finally, the flowers!

Originally, Amanda suggested beargrass (Xerophylllum tenax) and Cobra Lily (Darlingtonia californica) to add to the list. Both are unique enough to identify easily and have unique life histories and/or cultural significance.

โ€œBeargrass has a unique flower stalk,โ€ said Amanda. โ€œIt is culturally significant to a number of native tribes and is an indicator of the Pacific Northwest Coast Region.โ€

Later she added: Clustered Lady Slipper (Cypripedium californicum), Gentner’s Fritillary (Fritillaria gentneri), Howell’s Camas (Camassia howellii), Siskiyou Iris (Iris bracteata), and Splithair Indian Paintbrush (Castilleja schizotricha)

Botanical Discoveries

It was still morning when we made it back to the trailhead, so we decided we would check out the Eight Dollar Mountain site just a short drive away before taking parting ways.

At Eight Dollar Mountain, we found a lot of other interesting species, including an amazing view of a Darlingtonia fen in bloom, and many endemics. 

However, my favorite moment on this pit stop was when we first arrived and headed up the road to the boardwalk. Amanda suddenly made a beeline off the side of the road. I followed.

A scattered patch of beautiful large white blooms with hairy petals and pink stamen ringed in a reddish brown grew there from their tall thin green stems. Neither of us had seen these flowers before. The excitement was palpable.

Giddy with our new find, Amanda dove into her reference materials and shortly was able to identify it as Howellโ€™s Mariposa Lily (Calochortus howelii)โ€”a local endemic. We would soon find out it was very common to the siteโ€”a lot of it grew along the boardwalk trailโ€”but at that moment, it was new, fresh, and exciting.

And there it wasโ€”botany in action, the joy of discovery.

Howellโ€™s Mariposa Lily (Calochortus howelii).

I discovered a lot on my hike with Amanda.

Though, I started out the day loving botany (Yes, I am a plant nerd). Experiencing Amandaโ€™s passion and persistence was both heartening and renewingโ€”like seeing a new plant for the first time. Seriously, it doesnโ€™t get better than that!

Amanda Snodgrass is a Field Office Botanist for the Bureau of Land Management, Medford District. She earned a Master of Science from Iowa State University in Horticulture in 2012. She has worked for U.S. Forest Service and National Park Service as a Botanist and Horticulturalist.

Hike with a Geologist at Tam McArthur Rim

View of Three Creek Lake from Tam McCarthur Rim Trail

Hiking up Tam McArthur Rim toward Broken Top is one of my absolute favorite hikes. With its mountain views, lakes, and windswept ridges frosted in wildflowersโ€”it is the perfect hike for anyone that likes, well, perfect hikes.

It is also a hike chock full of geological curiosities!ย  Lava rocks, volcanic cones, glacial lakes, and bisected mountains are all visible along the 5.6-mile trail. Each item offering a clue to the past, as well as the future, of the High Cascades of Central Oregon.

To help me understand the geological mystery of the region, I asked Derek Loebโ€”retired petroleum geologist, president of the Central Oregon Geoscience Society, and Sherlock Holmes of the Central Oregon Cascadesโ€”if he would meet with me to try and crack the case. Luckily, he agreed, and we headed up one late summer morning to the Tam McArthur Rim Trailhead for some good old-fashioned geological detective work.

Dinner Plate Andesite

It was a warm breezy morning when Derek and I started out on the trailโ€” climbing up through pine trees and mountain hemlock with Three Creek Lake just below us.ย Derek and I hadnโ€™t made it very far when we reached our first stop.

What do we have here? A platy outcropping of gray rock ran across the trail and along the hillside.

โ€œYou know the naming of volcanic rocks is based on chemical composition?โ€ Derek inquired, as I puzzled over the fragmented rock.

You see, volcanic rocks are classified by their silica content, he explained. In general, the breakdown is as follows: basalts are 48-52% silica, andesites are 52-63%, Dacite 63-66%, and Rhyolite 68-77%.ย 

Of course, silica is not something you can easily measure in the field. So, without a silica meter (does such a thing exist?), can one distinguish between the different types?

โ€œHard to tell just looking at [a rock],โ€ Derek explained, but there are clues. โ€œOne of the clues you can use is how [the rocks] present themselves.โ€

Derek pointed to the fine fractures in the rock before us. โ€œThis is very typical of andesite,โ€ he proclaimed. The “thinly bedded fracture pattern” is probably due to exposure to a local stress regime while cooling, Derek hypothesizedโ€”giving the rock shale-like appearance.

According to Derek, the shale-like fracture pattern in andesite is so prolific, that there are several lakes along the PCT called “Shale Lake”โ€”despite the fact that shale is a sedimentary rock and has no business on the Cascade Crest.

โ€œI assure you there is no shale on the crest of the Cascades,โ€ Derek said. It is all andesite.

โ€œI call it dinner plate andesite,โ€ said Derek, picking up a piece.

โ€œStand back,โ€ he called out and gently tossed the rock toward the outcropping where it pinged against the rocky face.

That โ€˜tink, tinkโ€™ seems to be a dead giveaway,” Derek mused.

Dinner plate Andesite outcropping on the trail

Time Travel

Derek and I hiked past a few more outcroppings of dinner plate andesite, as we continued to climb up the dusty path through clusters of mountain hemlock trees. As we walked, Derek spoke about his interest in geology.

โ€œYou get to do time travel in the past and in the future,โ€ he spoke adamantly. โ€œA basic tenant of geology is the present is the key to the past, but the past is also the key to the future.โ€

For example, we might see dinner plate andesite and surmise that a lava flow came through the area sometime in the pastโ€”we can even date it and identify its source. At the same time, the andesite offers a window into what the area might look like in the future.

The job of a geologist is to look in both directionsโ€”understanding the past to predict the future.

Active, Dormant, Extinct

I considered this. Then, peering ahead of us up the trail, I asked Derek if the Central Cascade Volcanoes would erupt again.

His short answer was โ€œyes,โ€ but it is complicated.

Though most of the central Oregon Cascade volcanoes are considered extinctโ€”meaning that they havenโ€™t erupted in the last 10,000 yearsโ€”recent eruptions have occurred in the vicinity.ย 

For example, North Sister was constructed from 120,000 to 45,000 years agoโ€”definelty extinct.

However, just north of it’s edifice is McKenzie Passโ€”โ€œwhich has been very active as recently as 1600 years ago.โ€ Not to mention the “recent” eruptions of South Sister 2,000 years ago.

So though North and Middle Sister, as well as Broken Top, are considered โ€œextinctโ€ by way of the 10,000-year-eruption rule, the Three Sisters as a region is volcanically active.

In addition, Derek pointed out, the distinction between active, dormant, and extinct isnโ€™t all that useful taken alone. Assessing volcanic threats requires a closer look at the volcanic hazards, as well as the risk of exposure to the hazard.

โ€œNot all volcanic eruptions are a problem hazard-wise,โ€ said Derek. He used the examples of a small cinder cone eruption in Newberry National Volcanic Monument.

โ€œThere might be some local impact,โ€ he remarked, but being a moderately hazardous eruption type and in a remote location means the threat of this sort of eruption would be quite low.

โ€œHowever, a large cinder cone eruption closer to Bend could be a big problem,โ€ said Derek. “Cinder cones will frequently produce a late-stage lava flow as the gas is depleted. Most of the east side of Bend was โ€˜pavedโ€™ by lava flows produced by Newberry cinder cone eruptions about 70,000 years ago,โ€ he added.

Similarly, a small rhyolite flow from South Sister might block the Cascade Lake Highway and disrupt recreation. But a more gas-rich, violent rhyolitic eruption that produces pyroclastic flows that travel toward the basinโ€”like the series of eruptions dating back to somewhere between 200,000 and 600,000 yearsโ€”that would be catastrophic!

Either way, Derek and I agreed, the Instagram threat assessment for any eruption would be off the charts.

A small cinder cone on a section of unmaintained trail.

What Lies Beneath

Still winding our way up the trail over eruptive material from the past, I questioned Derek about how we know volcanic activity is occurring. Can we see what lies beneath the earthโ€™s surface?

As it turns out, we can, and geoscientists do so in a variety of different ways.

The first way Derek mentioned was using what is called seismic tomographyโ€”essentially using the patterns of seismic wave return patterns during earthquakes to interpret Earthโ€™s internal structures, including potentially active magma chambers.

โ€œThink of it like a CT scanโ€ Derek suggested. โ€œHotter, more plastic rock is slower than solid, cold rock,โ€ he explained, โ€œproducing an anomaly that you can map.โ€

The use of GPS stations and tiltmeters is another method used to monitor surface topography changes.ย 

โ€œGPS is now accurate enough you can measure small changes,โ€ said Derek.

Of course, satellites can be used to detect change using a technique called interferometry. Derek explained how repeat satellite passes can use a type of radar wave to measure topography and detect changes. Repeated passes for the same location constructively stack up when the Earth is static. A little movement will change that and cause the waves to interfere.  

โ€œIf things are changing, the travel time will change and the waves wonโ€™t stack,โ€ explained Derek. โ€œThat is how they first detected the bulge on South Sister,โ€ he went on.

โ€œThe fourth way is to go to local lakes and streams and sample gases,โ€ said Derek. โ€œPicking up increasing gasses associated with magma can start to raise the alarm.โ€

Whatever the methods used, volcanologists are good at using the data to warn of pending eruptions. Unfortunately, the timeline of the eruption is, as Derek put it, โ€œnebulous.โ€

From the time of the warning, it could take an unpredictable amount of time before the eruption will occur. โ€œIt may not happen in a week, month, or yearโ€ฆโ€ Derek speculated. โ€œIt is hard to get people to pay attention.โ€

Luckily for us, there was no eruption warning in place, as we were probably only about three miles from Broken Top and six miles from South Sister.

Where did you come from?

At this point, the steep grade of the trail leveled off a bit and the rocks we were passing by no longer resembled dinnerware. Instead, clusters of large rocks of varying shapes and colors lay scattered next to the trail.

Many rocks were in shades of red, black, or gray; some smaller rocks were nearly white. Many of the rocks were massive, but others had large or small vesicles in them. One interesting specimen was a large, maroon-colored rock swimming with dark blogs of grey. As I would later find out, this separation of color was probably due to slight differences in the chemistry.

I needed to know what was going on! Were these new rock forms indicative of anything?

โ€œThe question you need to ask,โ€ Derek pulled me back, โ€œis this [rock] in place, or was it transported?โ€

In other words, do the rocks actually describe the subsurface geology? Or did they get washed in by water, blown in by the wind, or fell from somewhere higher up by gravity?

The surest sign that a rock is from the place where you found is if you can find it’s nearby source.

Otherwise, you must rely on clues. Does it look like itโ€™s been moved? Does its orientation make sense? Is its original structure intact or has it been reshaped through transport?

Colorful rock found in the quaternary rhyodacite geological unit

Quaternary Rhyodacite

Of course, another surefire way to know if the rocks match the subsurface is to bring Derek along.

Derek whipped out his phone and pulled up a georeferenced map from USGS for the Bend Quadrangleโ€”a rectangular area of land that is equivalent to roughly about 41 to 71 square miles, or 7.5-min longitude by 7.5-min latitude.

โ€œWe are now in the QRD unit,โ€ said Derek looking down at his phone. โ€œThat is a quaternary rhyodacite.โ€

The underlying geology had changed from the less silica-rich andesite to more silica-rich rhyolite and dacite rocks.

The Many Faces of Rhyolite

Now as you may recall, rhyolite and dacite rocks have a higher silica content than other volcanic rocks, like andesite or basaltโ€”a measurement that can only be determined through chemical analysis. However, just like with andesite, there are clues that can help to tell them apart!

โ€œRhyolites are some of the most interesting of the volcanic rocks because they are the shapeshifters,โ€ Derek explained.

Derek picked up a small piece of white pumice from the ground. We had seen several of these small, pieces of volcanic rock, earlier as we hiked through a few of what Derek called pumice flats.

Pumice, he explained, can have the exact same chemical composition as obsidianโ€”a black, shiny rock that has no gas bubbles in it, and, in fact, no crystalline structure. Pumice and obsidian couldnโ€™t be more different, yet they are both rhyolites.

The Physics of Color

These are not the only forms of rhyolite either.  โ€œRhyolite can be black, gray, purple, maroonโ€ฆ,โ€ Derek went on. โ€œIt really covers the bases.โ€

As for dacite, it too is variable in color, though not as much as rhyolite, and is often a paler, bluish grey. Basalt and andesite are also usually greyโ€”though often on the darker side.

โ€œColor,โ€ Derek explained, โ€œcomes from the physics of light.โ€

Mineral Mayhem

We continued up the trail, observing the rocks along the way. At one point, Derek noticed a clean face on a piece of grey rockโ€”perhaps an andesite based on the color.

For example, pumice is rhyolite from an eruption high in gases that expanded the rock creating millions of gas bubbles that can scatter light in all directions, sort of like a cloud mightโ€”giving it whitish colors. In contrast, obsidian contains a lot of micro inclusions of iron oxide minerals, like magnetite, that absorbs rather than scatters lightโ€”hence the deep blackish colors. ย ย ย 

Derek took a closer look at the broken face of the rock.

โ€œProbably plagioclase feldspar,โ€ he declared.

Plagioclase is a term used to describe a group of feldspar minerals that are chemically very similar, only varying in their percentage of sodium and calcium.ย  Feldspar minerals in general follow the chemical formula AT4O8 (where A is potassium, sodium, or calcium, and T is Si or Al).

โ€œFeldspar is the most common mineral in the Earth’s crust,โ€ Derek told me, but it also comes in many forms. It is often the trace elements that fill in the crystal lattice that give it its characteristics.

For example, rubies and sapphires are both the same mineral (corundum), but ruby has chromium as an impurity and sapphire has titanium and iron.

In the case of feldspars, they can range in color from white or pink to very dark grey. One of the most important plagioclase feldspars to Oregon is the Oregon sunstoneโ€”a labradorite that, like other sunstones, contains small inclusions of copper or iron oxide (either hematite or gothite) giving the gemstone an orange color.

You wonโ€™t find any rubies or sapphires in Oregon, or sunstones, for that matter, in the Central Cascades.

โ€œThe Three Sisters Wilderness is mineral poor in terms of classic rock hounding,โ€ said Derek.

But that doesnโ€™t mean it isnโ€™t fun to look closer at the less โ€œclassic rock houndingโ€ minerals in the rocks. And a fresh face is a great place to do so. 

โ€œWhich is why our [geologistsโ€™] favorite investigation tool and anger management tool is a rock hammer,โ€ laughed Derek.

Broken rock face (probably andesite) with plagioclase feldspar minerals

Particulars on Vesicular

We continued past the open-faced rock, toward the rim. We were getting closer to the final push to the top.  In the meaning time, it seemed like there was an endless supply of rocks to examine as we wandered along.

At one point, Derek picked up a massive rock from the trail and handed it to me.

ย โ€œFeel how dense it is,โ€ he said encouraging me to feel the weightiness of the rock. โ€œThis would indicate that it is flow and not a gas-heavy eruption.โ€

He then picked up a smaller rock, riddled with small vesicles (holes), and handed it to me. It felt much lighter.

This second rock would have been from a heavy gas eruption, he explained. โ€œScoria,โ€ย  Derek called it, โ€œusually associated with cinder cones.โ€

You see, vesicles are a good indicator of the presence of gas, but the particulars for each type of vesicular rock depends on conditions.

For instance, scoria is usually formed from low silica lava, high in gases that expand as they rise during an eruption and the lava cools usually in flight. Pumice, on the other hand, forms from high silica lava that is thicker and stickier resulting in frothy lava that erupts violently and cools quickly in the air.

โ€œPumice can rise thousands, even ten thousand feet high,โ€ said Derek. โ€œIt is a cold ash flow. It isnโ€™t molten when it hits the ground.โ€

Flow Boundaries

However, vesicles are not reserved for high gas eruptions. Many flows also contain vesicles.

At one point, Derek and I stopped at a collection of rhyolite-dacite rocks with large vesicles to discuss what was going on.

โ€œRhyolite and dacite are very viscous, so gas cannot escape in a controlled way,โ€ he went on. So, โ€œwhile it cools, it [the gas] will migrate upward, and might accumulate into bigger vesicles.โ€

In short, vesicles in flows of lava are generally found near the top. This can be useful for a couple of reasons.

For one, they tell you where the flow boundaries are. โ€œThe cooling interfaces are the ground and atmosphere,โ€ explained Derek. And vesicular rocks, as well as rugosity, or roughness, occur at these boundaries.

Second, they help geologists determine which way is up. โ€œI would look at the vesicles and orientation of the vesicles,โ€ said Derek, โ€œthis should be related to the free surface.โ€

One of many highly vesicular rocks found along the trail, probabaly from a flow boundary

Geology meets Botany in the Pumice Flat

As we walked over another small rise, the trees faded behind us and we entered a large, flat open space, hemmed in by a large hill just ahead. Again, we had entered a pumice plain.

Though devoid of any large trees, like the mountain hemlocks we had been walking through for most of the hike, pumice plains are often inhabited by a few different wildflowers. We saw a couple of species of buckwheat, along with purple lupine, and a low-growing Newberryโ€™s knotweed.ย 

Earlier I had asked Derek about the connection between botany and geologyโ€”and here on the pumice plain, seemed like the perfect opportunity to discuss.

โ€œDifferent plants will seek out different geological environments,โ€ Derek said.

The pumice plain is not an ideal environment for most plants. Pumice creates soil that drains quickly and doesnโ€™t hold onto nutrients well. Cold temperatures and low moisture are also challenging. Few plants can tolerate this environment.

โ€œ[In the pumice plain] it comes down to austerity and competitionโ€”there are not a lot of resources in the pumice plain, little water, and nutrientsโ€ฆ but that also discourages competition.โ€

It takes a special sort of plant to survive the harsh conditions and set the stage for other plants to come in. One example of a species that does this is lupine.

โ€œLupine is a member of the pea family and can convert nitrogen from the air to a useable from at its roots and therefore make its own fertilizer,โ€ Derek explained. โ€œThis gives it an advantage, so it is frequently the pioneer species that then enables other hardy plants to grow in the vicinity.โ€

Hiking through the pumice field.

Layers of Lava

After climbing over a couple of steep hills we reached a viewpoint. Looking down you could see Three Cree Lake again and the steep cliffside that we had walked up.ย 

The underlying architecture of the lava flows that made up the cliff was exposed in all its many layers. There was the andesite layer, with its platy structures, and many rhyodacite layers with looser pyroclastic layers in-between layers of ash and pumice. It was a magnificent edifice built from a variety of rock types, built from a variety of lavas.

Looking at the layers, I tried to imagine just how each lava flow would have moved across the land so many years ago.

View of the rock layers and lakes below from near the rop of the rim

Flow with It

If you recall, volcanic rocks can be classified by their chemistryโ€”specifically their silica contentโ€”with basalt and andesites being lower in silica than dacite and rhyolite. This not only affects their form as rocks but more importantly it affects their flow.

โ€œIf it has more silica products, it isnโ€™t going to flow far,โ€ Derek explained, โ€œIt is thicker and will build up vertically.โ€

According to Derek, a high silica flow might travel a few miles, maybe 10 miles at most, and at an almost imperceptibly slow pace.

โ€œThe big obsidian flow in Newberry National Volcanic Monument is a classic example of a rhyolite flow,โ€ Derek suggested. โ€œOr if you go to Wickiup Plain, you can see Rock Mesa,โ€ another great example.

In comparison, basalt or andesite will erupt as a fluid stream of lava that flows over top of each otherโ€”โ€œlike many coats of varnish,โ€ Derek described. Also, โ€œBasalt flows can flow much, much further,โ€ Derek went on, โ€œespecially if they form lava tubes.โ€

McKenzie Pass is a good place to see basalt flows.

Even better, Derek suggested watching videos of a Kilauea eruption to truly appreciate the movement of lava in general.

Of course, it should be kept in mind that not all high silica volcanic products are released in lava flows. Pyroclastic flowsโ€”best described as a rushing flow of hot volcanic rocks, ash and gas can also travel far. โ€œPerhaps even 100s of miles,โ€ estimated Derek.

Banded

As we walked the last hundered or so feet to the top, several colorful red and black colored rocks caught my attention.

โ€œThis looks cool,โ€ I said, pointing to one of them.

It was another rhyolite or dacite specimen, like we had seen beforeโ€”only it had thick bands of black running through it.

โ€œRhyolite and dacites are very viscous,โ€ Derek explained, โ€œAs they cool, any variation in silica will change the melting point and it will tend to start segregating by silica content forming these bands.โ€ This process, Derek explained, is called flow banding.

โ€œReminds me of petrified wood,โ€ said Derek.

It was gorgeous.

A flow banded rock along the trail

The Sculptorโ€™s Hand

Finally, we reached the high point on the rimโ€”and the end of the โ€œmaintained path.โ€ We stood on the cliff’s edge looking down at a rocky face that dropped down steeply into a basin.

At this point, Derek asked me what I thought about what we were seeing.

โ€œWhat would you call this type of topography?โ€ He queried.

I must have looked apprehensive to answer because offered a subtle hintโ€”pointing out the โ€œnear semi-amphitheaterโ€ shape.

โ€œA glacial cirque?โ€ I responded questioningly.

โ€œYes, a glacial cirque!โ€ replied Derek in a congratulatory tone. โ€œA classic glacial cirque. There is another one over there too,โ€ he remarked referring to the Three Creek Lake Basin area. โ€œIt is not an isolated phenomenonโ€ฆ

โ€œAndโ€ฆโ€ he went on pointing to the east toward the lakes, โ€œdollars to donuts, there is some glacial till, moraine material, creating the lumpy topography.โ€

Glacial cirques are bowl-shaped valleys formed by glacial erosionโ€”the removal of rock and sediment as the glacier flows downslope.ย  When this material is deposited a moraine formsโ€”an accumulation of this debris known as glacial till. Finally, when a glacier retreats and the depression left behind fills with water, a lake can formโ€”a โ€œmoraine lakeโ€

Mystery solved. Tam-McArthur Rim is a glacial cirque. And Three Creek Lake is a moraine lake. It isnโ€™t all about the lava, but the ice!

โ€œGlacial processes in the Cascades tend to be underappreciated by the general public,โ€ Derek sighed. Yet, glaciation is just as responsible as volcanism for creating what we see today in the High Cascades

โ€œThe volcanic processes provided the raw material,โ€ explained Derek, โ€œthe glacial processes provided the sculptorโ€™s hand.โ€

Derek gestering toward the glacial cirque with Broken Top and the Three Sisters in the background

Geometry of Volcanoes

Of course, standing at the top of the rim, it was hard to ignore the many voluminous peaks filling up the skyline. Broken Top and the Three Sisters were most prominent, but you could also see out toward Mount Washington, Three-Fingered Jack, and Jefferson, as well as Black Butte and Mt. Bachelor.

Volcanoes are often grouped into three major types distinguished by the geometry of the coneโ€”stratovolcano, shield, and cinder cone.

Stratovolcanoes are often the tallest with steep sides; some during a catastrophic eruption may lose their top, like Mt. St. Helenโ€™s, for example. Shield volcanoes are large with shallowly sloping sides, often formed from low silica lava that flows. Cinder cones small and conical, built up by pyroclastic fragments of a single eruptive event.ย 

Changing Geometry

The problem is geometry changes.

โ€œBroken-Top is a generally misunderstood peak,โ€ said Derek pointing to its ragged open maw. 

According to Derek, many people assume, based on its shape, that Broken Top catastrophically erupted. โ€œBut it is mainly because it has been through a couple of glacial cyclesโ€ฆโ€ explained Derek, that it looks like its top was blown off.

Glaciation has sculpted all the peaks to some degree in the Cascades.  Only, volcanoes like Broken Top (active 300,000-150,000 years ago) and Three-Finger Jack (active 500,000-250,000 years ago) were built much earlier than Three Sisters (North Sister, the oldest, active 120,000-45,000 years ago) so they have experienced a lot more glacial erosion. 

Derek pulled out a diagram that showed some of the Cascades Volcanoesโ€™ building phases alongside a graph of time vs. temperature data taken from ice cores from Greenland. From the diagram, you could see how long each volcano was in a building phase compared to the number of glacial cycles it experienced.

โ€œBroken Top has been through two glacial cycles,โ€ Derek said pointing to the graph. While โ€œSouth Sisterโ€™s ice cream scoop shape is because it was active during the last glacial period while it was still forming.โ€

The pointed top of Mt. Washington was visible on the horizon. โ€œMount Washington is another one that people make assumptions about,โ€ said Derekโ€”โ€œOne-fingered George, I call it.โ€

With its spire-shaped top a lot of people might mistake Washington for a stratovolcano, but, in fact, it is a shield volcano.

โ€œImagine what the original shield geometry is,โ€ Derek suggested. We traced the line of the slopes that slanted down gently away towards what remained of its top. โ€œWhat you see left is the central magma conduit,โ€ glaciation took the rest.

I asked about Back Butte, as I remembered it was older than Mt. Washington, but still retained more of its shape.

โ€œBlack Butte is an oddball,โ€ Derek replied, โ€œIt is the oldest of the Cascade volcanoesโ€”1.4 million years oldโ€ฆIt wasnโ€™t heavily glaciated because it is lower elevation and far enough east,โ€ Derek explained.

I tried to imagine what Black Butte (a stratovolcano by the way) would look like if it had been heavily glaciated.  Would it even be here now if glaciers had carved it all those 1.4 million years?

Who knew? Ice. Impressive.

View of some of the Cascade peaks incluidng Mount Washington and Black Butte in the distance.

Non-Maintained

After exploring the rim, Derek and I decided to continue along the well-used, but non-maintained trail toward Broken Top. The terrain was mostly flat, at first, clumps of whitebark pine bowed over next to the path. Broken Top was striking in the near distance.

As we hiked, we walked through an area littered with what looked like andesite rocks, suggesting a flow in the vicinity, though we never identified the source.

What looks like andesite scattered along the trail heading toward Broken Top

Little Broken Top

However, soon the geology shifted toward a less definable area that contained a mixture of different rock types. Hidden among the varied rocks was a ragged piece with red and black bands that caught Derekโ€™s eye.

โ€œIt looks like a miniature Broken Top,โ€ he claimed.

When you look at Broken Top you can see thick bands of color following its slopes on a diagonalโ€”each band of color is a different lava flow, according to Derek.

โ€œColor almost always has to do with the oxidation state of the iron,โ€ explained Derek.

Though not completely understood, fluids that form the magmas and ascend as lavas are oxidizedโ€”meaning (in this case) iron is being stripped of electrons as it chemically bonds with oxygen. The different combinations of iron with oxygen are what is responsible for the different colors.

โ€œYou can get hematite [Fe2O3] which is red, limonite [FeO (OH) *nH2O] is yellow, and magnetite [FeO] is black,โ€ said Derek.

I snapped a picture of the miniature Broken Top with its bands of color before continuing up the trail toward the true Broken Topโ€”its oxidized lava rock bands almost glimmering in the distance.

“Little Broken Top” in all its glory!

Volcanic Bombs

The trail steepened, as we reached a nice viewpoint, and stopped for lunch. After lunch, we decided to take the trail just a little bit furtherโ€”Derek had one more artifact to show me.

โ€œThese are volcanic bombs,โ€ said Derek, pointing to a large, elongated reddish volcanic rock, โ€œsome of the best examples, as they are relatively intact.โ€ 

The rock was slightly pointed on one end and looked pulled or stretchedโ€”lines ran through the rock parallel to its lengthier sideโ€”like pulled taffy.

โ€œIf you have cohesive blobs of lava ejected, in flight they will adapt an aerodynamic teardrop shape,โ€ Derek explained.

We continued up the trail in pursuit of a few more bombs that Derek had seen on a previous visit.

The trail wound up a red pile of cindersโ€”the rocks oxidized to red hematiteโ€”before reaching a narrow ridge with several massive volcanic bombs.

These bombs were hugeโ€”the size of a large dog.ย  One lay openโ€”its guts exposed for us to seeโ€”probably broken from the impact.

โ€œProbably from basalt or low silica lava,โ€ Derek decided as we examined its innardsโ€”this is typical of lava bombs. 

A large volcanic bomb broken on the trail

All of It

I was struck by the beauty of the placeโ€”the arc of volcanoes, the sparse vegetation, the open expanse, and these amazing rocks that made an impact some 10s-100s of thousand years ago. All of it.

โ€œIt is what Central Oregon has to offer,โ€ said Derek.

Breathtaking geology.

And with one last look, we headed back.

Final view looking out toward Broken Top

Hike with a Dune Scientist

Counting Carbon at South Beach State Park, Oregon

View down to the ocean from the crest of a dune

When you visit Oregonโ€™s coast you may have noticed that it takes some effort to get down to the beach. Much of Oregonโ€™s coast is characterized by large grass-covered dunes that separate inland areas from the sandy shoreline environment. So, getting to the beach often takes a little bit of a climb. This was not the case some 100 years ago.ย 

Before European colonization on the Pacific Northwest coastline, much of what is now a dune system would have looked very different. Instead of walls of sand 15 meters high, a hummocky sand sheet would have stretched to the shoreline. 

The dune landscape was created by people. In 1910, European beach grass (Ammophila arenaria) was introduced to the Oregon coast to stabilize and control areas of sand near human habitation. Later, in the 1930s, American Beach grass was also introduced. ย 

These grasses are really good at capturing sand and building dunes. They are also really good at spreading via seed dispersal and rhizomatic growth. The result is the grass-covered dunes you see stretching down the coastline today.ย 

So, how should we feel about this takeover? 

I met up with John Stepanek, biologist, and Ph.D. candidate in Sally Hackerโ€™s Lab at Oregon State University, at South Beach State Park to discuss these built dunes and what they mean for Oregonians now and in the future.ย ย ย 

The Hikeย 

  • Trailhead: South Beach State Park Day Use Area (South Jetty Trailhead)
  • Distance: varies (approx. 2 miles)
  • Elevation Gain: minimal
  • Details: No parking pass required. Ample parking at the trailhead. Restrooms are available. Access roads to the trailhead are paved. South Jetty Trail is a paved path.
Forested dune ecosystem on South Jetty Trail

Meet and Greet

The day was bright and warm when I met John in the parking lot at South Beach State Park. John had his dog with him, and both were friendly and welcoming, as we made our introduction and started down the paved South Jetty trail.ย 

John told me how he grew up in California not really knowing what he wanted to study. He enjoyed biology in high school, and the outdoors, but it took him a while to find his path. 

โ€œI thought I would like to be a wildland firefighter,โ€ John reminisced.

However, his love for biology, and specifically plants, grew while attending Cal Poly for his undergraduate degree. And eventually, he changed his major from Forestry to Biology.ย 

Despite his love for plants, Johnโ€™s early involvement in research was focused on reptiles. 

โ€œI studied rattlesnakes and blue-bellied lizards for three years,โ€ said John.ย ย 

It wouldnโ€™t be until he came to OSU and joined Sally Hackerโ€™s Lab that his attention would be drawn back to his love for plants, as well as a new focus of studyโ€”dunes.    

Forested Dune Ecosystem

John and I continued down the wide path. On either side of us was a wall of trees and shrubs. I asked John with his expert eye to describe what we were seeing. 

โ€œWe are in a forested dune ecosystem,โ€ said John, his love for botany radiating forth. 

ย โ€œThe main canopy is shore pine,โ€ he went on, pointing to a rough-barked tree with long needles and a bent stature. โ€œIt is one of the only pines with two needles in each bundle.โ€ย 

John went on to explain how shore pine is just a subspecies of a conifer that typically grows in the mountains, called the lodgepole pine.  Grown on the coast it tends to be shorter and more gnarled, while in the mountains it grows straight and tall. 

But shore pine is not the only canopy tree in the dune forest. Sharp-needled Sitka spruce is also often present. I noticed a few growing alongside the shore pine. 

Soon John and I got to botanizingโ€”noticing and pointing out all the plants on the trail. 

โ€œFerns and grasses grow out here,โ€ John stated. โ€œSalal as well.โ€ He pointed to the thick, large-leaved plant with an angular alternate arrangement.

Native plants, like evergreen huckleberry, twinberry, and our native beach grass were all identified, as well as non-native scotch broom and European beach grass. 

โ€œIt is not super complex, at least not in the state it is inโ€ฆ the grasses have reduced the native biodiversity,โ€ John explained. โ€œThere are a lot of different plants but there is low abundance.โ€ 

John showed me how to tell the native beach grass from the non-native varieties: โ€œSee how it has a bluish wax that you can rub off, and how wide it is with a prominent midrib?โ€ 

Charting the Dunes 

It didnโ€™t take long before John and I reached a trail heading left toward the beach. We decided to take it, to see what lay beyond the forested back dune (also known as the hind-dune).

John described the transition from the back dune heading toward the coast as being a bit like walking forward in time with the forested back dune being the oldest and the beach the youngestโ€”a study in succession. 

We moved forwardโ€”in space and time. 

Heading up the dune heel

The Heel

As we entered the dune heelโ€”the area just behind the dune closest to the oceanโ€”the vegetation transitioned from forest to grass. Though European beach grass was dominant, many shrubs and small herbaceous species grew in this more sunlit environment.

John pointed out some young yarrow with its lacy leaves and beach strawberry trailing along the path edges. We also saw the radiating leaves of the seashore lupine (Lupinus littoralis). 

โ€œPearly everlasting is common in summer,โ€ John added.  

Even sword fern, typically a forest plant, seemed to be surviving the harsh conditionsโ€”though its fronds were a bit battered and curled inward.ย ย 

โ€œHow does it grow so many places?โ€ John enthusedโ€”impressed by its adaptability.

Overall, it seemed the backside of the dune had a rich assortment of plant life. โ€œThis area is cut off from new sand deposits,โ€ John explained, so โ€œthere is more biodiversity back here.โ€ 

Evergreen huckleberry and sword fern hidden in the beach grass

The Crest

However, as we trudged up the steep foredune, the dune closest to the ocean, all of that changed. As we reached the crestโ€”the highest point of the foreduneโ€”we faced a near uniform sea of European beach grass. 

John explained:

โ€œThere is low diversity on the face of the foredune, where it is really only the grasses. The grasses build up a dune tall enough that it buries the other plants trying to grow and eventually creates a wall that prevents the sand from being blown further back.โ€

In short, European beach grass is too good at building dunesโ€”nothing else can really keep up with the rate at which they collect sand. 

John’s dog standing at the crest of the dune

The Toe

Coming down off the face of the dune, some biodiversity may be regained. Certain plants become more common on the toe of the duneโ€”the far front end of the dune facing the water. 

Though we didnโ€™t see any on our hike, John sent me a list of these species common to the toe: yellow sand verbena (Abronia latifolia), pink sand verbena (Abronia umbellata), American sea rocket (Cakile edentula), sea rocket (Cakile maritima) and seaside sandwort (Honckenya peploides). 

View looking up at the dune toe

Storing Carbon

John and I hiked down the face of the dune to the beach to continue our walk. 

As we walked the beach, John told me about his part in researching the dunes. You see, John doesnโ€™t just study the plants in the dune ecosystem, he studies the carbon. 

โ€œCoastal ecosystems like salt marshes, estuaries, and mangroves are really good at storing carbon,โ€ said John. 

He went on to explain how carbon is stored through โ€œtwo mechanisms.โ€

First, the vegetation in these ecosystems stores carbon via photosynthesisโ€”essentially removing carbon from the atmosphere and storing it in their tissues, and later the organic matter in the soil after they die.ย 

Second, is the storage of carbon in sediment that is washed in and settles in these tidal areas, building up a layer of organic matter. This organic matter sticks around, decaying very slowlyโ€”effectively storing carbon for the long term. 

The problem is that though estuaries, tidal marshes, and mangroves are excellent carbon stores, they only make up a tiny fraction of the world’s coastโ€”โ€œup to 6%โ€ according to John. While dune ecosystems, whose carbon storage potential has largely been overlooked, make up one-third.ย 

Admittedly, dunes donโ€™t seem at first glance likely candidates for the world’s greatest carbon sinks. The fact that they are mostly sand isnโ€™t particularly encouraging. But that didnโ€™t deter John from researching dune carbonโ€”work he has been engaged in over the last four years.ย 

Counting Carbon

This of course raises the question: How does one go about measuring carbon? 

โ€œWe do a transect from the water back to the trees and shrubs,โ€ John answered when I asked him that very question. A transect is simply a measured line from which data is gathered. 

Then using a quadratโ€”a square made of PVC pipe thatโ€™s used to measure things in a certain areaโ€”the abundance and density of plants are measured at points along the transect, and samples of plants are collected. This data will be used to determine the โ€œabove ground carbon.โ€

Then, using a 4-inch PVC pipe and a sledgehammer, John takes cores along the transect as well. These cores go down 1 meter and are used to collect samples of โ€œbelow-ground carbon.โ€

Once in the lab, samples are dried,ย  weighed, and then burned at 550 degrees Celsius. Before and after weights of the samples are used to get a crude measure of organic matterโ€”a decent proxy for carbon. Later, elemental analysis is done on some subsamples, as well, to determine the organic matter to carbon relationship.ย 

The goal is to get an estimate of โ€œthe actual carbon stocksโ€ found in dune ecosystems.ย 

Findings

The sun reflected white puffy clouds as John and I hiked on the wetter, firmer sand on the beach, closer to the ocean’s edge.ย 

I asked John what he has discovered so far. Was there any carbon in the sand below our feet?

In general, not a lot. 

โ€œSand is mostly inorganic tiny rocks,โ€ said John. โ€œThey donโ€™t trap organic matter very well and there is a quicker rate of decomposition relative to materials like silt or clay.โ€

The highest value John has found in any of his sand samples is 10% organic matter. On average 4.4 kg of organic carbon per meter squared. These values are higher than desert sand and even higher than conventional agriculture, but on the low end compared to salt marshes and terrestrial grasslands, according to John.ย 

โ€œThe highest in some other systems could be 80%,โ€ stated John as a comparison. John mentioned mangroves and coast range forestsโ€”these would be many magnitudes more. 

Of course, these values are per volume and per unit mass, and there is a lot of sand in the dune ecosystem. Therefore, despite the low percentage, the dunes are still providing a substantial carbon store.  I mean, 10% of a lot is still a lot.  

Hiking along the beach at South Beach State Park

Patterns

Having gathered data from nearly fifty transects up and down the coast, John has also observed other patterns. 

There are differences depending on latitude, type of dominant beach grass, distance from the shore, as well as vertically within core samples. 

โ€œThere is more (carbon) near the surface,โ€ John remarked, โ€œโ€”the organic horizon of the soil.โ€

Carbon also varies as you move through a transectโ€”increasing as you move toward the back dune where the vegetation is more biodiverse and complex.ย  The intertidal area is also typically a bit higher, around 1%, and the toe of the dune at something like 0.5%.ย 

โ€œPlants are the main driver of organic matter,โ€ John explained. Thus, the further you move back from the ocean, the more carbon.

Ecosystem Services 

I glanced up at the dunes to our right as we strode across the โ€œmostly inorganic tiny rocksโ€โ€”measuring the mass mentally, assessing the carbon. 

Could these dunes help solve our climate crisis? Should we be building more dunes?

I didnโ€™t ask John these questions. These are questions that John said that he commonly gets asked about his research.  

The short answer is no. 

He continued, โ€œWe donโ€™t have all our results, but we expect that todayโ€™s dunes store more carbon than native systems would have done and trap more sediment,โ€ but โ€œthe reason there is too much carbon in the atmosphere isnโ€™t because we dug up the dunes.โ€ย ย 

The dunes were not historically here. Though they provide some benefits, like storm and erosion protection, and even a little carbon storage, the pre-dune environment would have had its own set of benefits.ย 

โ€œBefore these grasses were introduced, lots of native plants and animals were able to live here, and many Indigenous peoples would have managed this environment for ecosystem services important to them.โ€

Also, we do know that the dune ecosystems, as they exist now, have at least some drawbacks to wildlife. 

John was adamant about balancing the services of the past and future. 

โ€œThey do a great job protecting coastal development, but not so great when it comes to the flora and fauna,โ€ John said. โ€œIt is about the collective good.ย  Coastal protection is only valuable for those living right on the coast.โ€ Does that mean it is best for everyone?

Carbon Stores

By now, John and I had reached the South Beach Jetty and turned inland, hiking up to the parking area to where we could loop back to our cars. 

ย I asked John as we reentered the most carbon-rich back dune environment and eventually the forest: What ecosystems we should be looking out for, if not dunes?ย ย 

โ€œThe temperate rainforests in the northwest coast range and west cascades,โ€ was his unhesitating reply.  Though he corrected himself a littleโ€”โ€œold growth forests.โ€ 

John explained how carbon is sequestered in the mass of the old-growth trees, both above and below ground.ย  He also made clear that high-density forests, like might be found on a tree plantation, are by no means comparable.ย 

โ€œFewer large trees have more carbon than a bunch of small young trees,โ€ John said. 

He mentioned the work of Dr. Bev Law from the College of Forestry at Oregon State University as a source for these findings.

โ€œHer work is showing the effects of the logging industry,โ€ he continued. 

Mangroves are another ecosystem John mentioned for carbon storage. Again, much of the carbon found in mangroves is stored in the tissue of the trees. In the case of mangroves, mostly below ground.ย 

โ€œEven in coastal ecosystems,โ€ said John, โ€œmangroves are an arm and leg above the others.โ€

Looping back 

After meandering a while in the tall dune grasses, once again, we found our way back to the forested paved path. As we walked, we talked forward about the futureโ€”both in research and in life. 

There are still many questions to be investigated when it comes to dune research. John mentioned being able to study the forested dune environment as being a good next step, though admitted he would not likely be the one to do the work. 

He also described a strong curiosity to understand more fully the structure of the foreduneโ€”what it looks like several meters down. John rattled off several questions for starters:

โ€œWhat does the root system look like? Are those roots and rhizomes all from the same plants? How has the water table changed? Is the carbon density the same deeper than a meter?โ€ย 

Uncertain Future

John doesnโ€™t know what he wants to do when he finishes his Ph.D.โ€”though he expressed an interest in teaching, perhaps at a small 4-year school or community college.ย 

But as he put it, โ€œI havenโ€™t taken other options off the table.โ€

The future is a tough thing to peg down. 

The Pacific Northwest dunes and coastal environments also face an uncertain future. Climate change and human encroachment threaten these ecosystems and their functioning.  

John hopes his research can help inform coastal ecosystem management. By understanding what we have nowโ€”perhaps we can mitigate against these threats and create a future worth preserving.ย 

John Stepanek is aย  biologist and PhD candidate in Sally Hackerโ€™s Lab at Oregon State University. He earned his Bachelor of Science from California Polytechnic State University where he majored in Biology.

Hike with a Sports Product Designer

Looking down the Wildwood Trail near the Newberry Trailhead

One thing that I love about hiking is its simplicity. You donโ€™t have to invest in a bunch of gear to become a hikerโ€”although some people do. All you need are a good pair of shoes and a pack filled with necessities, and you are off to the races.

At the same time, the sport of hiking is ripe for product innovation. Hikers are ready for products that improve performance, safety, and overall function. I mean, honestly, a good pair of shoes can be difficult to come by.

Which begs the question, how do hiking products come to market? What is the design process for a hiking shoe or pack?

On a cool spring day, I met with Susan Sokolowski, director of the Sports Product Design Program at the University of Oregon, and Henry Gilbert, one of her students enrolled in the program, for a hike on the Wildwood trail to find out.

The Hike

  • Trailhead: Newberry Road Trailhead (45.605640, -122.823430)
  • Distance: 5.1 miles out and back with longer options
  • Elevation Gain: approximately 531 feet
  • Details: Limited parking at the trailhead which is a pullout on the side of the road. No restrooms are available. Roads to the trailhead are paved making access easy. This is the northern terminus of the 31.1-mile Wildwood trail.

It was raining hard right just a few minutes before I pulled up to the trailhead. The trees still glistened with fresh drops clinging to the tips of the branches. I found Susan and Henry just down the road a bit from where I parked, and we got started. A trail running event looked to be coming to an end as we arrived, and a table of volunteers welcomed us to the forest.

We took off at a moderate pace down the trail.ย  The green conifer forests promising some level of protection if the sky decided to open again.

What it takes

We started with introductions.

Henry introduced himself as a student, originally from Salt Lake City, in his first year in the Sports Product Design program at UO. His background is in electrical engineering.

โ€œI heard about this program, and I was super excited about it,โ€ said Henry, โ€œI have a passion for hiking.โ€

Susan introduced herself as the professor and director of the sports product design program. Her background is in design, as well as human factors engineering and kinesiology. She earned her masterโ€™s degree at Cornell University under Susan Watkins, the mother of functional design, and from there entered the sports design space at the University of Minnesota, co-majoring in biomechanics and design.

โ€œWhen I went to school, I was definitely an oddball student,โ€ Susan laughed.

Susan (left) and Henry (right) after walking through some mud on the trail.

The Design Process

We continued along the well-worn path under the canopy of Douglas-fir and western redcedar. Sword fern dominated the understory along with a myriad of herbaceous forest plants, including vanilla leaf and yellow stream violet.ย 

As we hiked, I asked Susan for an overview of what she does as a sports product designer.

She began her explanation with a mission statement:

โ€œOur mission is to push the field with game-changing solutions for athletes that push performance and society.โ€ She continued, โ€œwe are looking at performance, but also in the sports industry, especially sports products, there is a large movement to look into equity in sportโ€”and that is part of it as well.โ€

This is what sports product designโ€”at least how she does itโ€”aims for. But how does it get there?

โ€œWe use a design process that it similar to the scientific process,โ€ entertained Susan.

As Susan explained, the process starts with a line of inquiry based on โ€œhow could weโ€ or โ€œhow might weโ€ statementsโ€”something akin to a hypothesis of sorts. From there ideation begins and the process of prototyping.

โ€œOur program really values creating concepts and physical prototypes,โ€ Susan expounded.

Once the prototypes are built, they are tested. This usually involves athletes or users trying the product and giving feedback.

Of course, just like in science, testing doesnโ€™t always lead directly to the production and marketing of a product. Often the results of testing may require a step back or two. The design process is not linear. 

Product Testing

We soon crossed over a small wooden footbridge as we made our way further into the forest.

I asked Susan to elaborate more on the product testing side of things.

โ€œThere are infinite ways to test products,โ€ Susan replied. โ€œWe could be testing for ease of use, regulation, impact protection, a feeling, accuracyโ€ฆ anything you can want an athlete to do, or have a better experience with, you can be testing for.โ€

On the practical side of things, the most common method used for testing is calling in a focus group. Asking people to experience the product and give feedback is the minimum expected for testing.

Then there are more complex methods using equipment, like thermistors or environmental chambers, for example.

Things get even more complicated if you are making a claim or in the business of making products that are more dangerous, like helmets. It is in these instances that, according to Susan, โ€œtesting becomes very important.โ€

โ€œCompanies have been shut down,โ€ said Susan, โ€œwhen testing wasnโ€™t up to snuff.โ€

So, depending on the product, testing could take a long time, even years.

Views of the footbridge crossing on the trail

Hiking Shoes

At this point, we were beginning to encounter a good deal of mud on the trail. I could feel the traction of my hiking shoes failing as the slick clayey mud started to gum things up.

โ€œWhat about hiking shoes?โ€ I asked, โ€œLetโ€™s say you want to design hiking shoes.โ€

Susan was quick to admit that hiking shoes are not only a challenge for people to shop for but also a challenge to design. On top of that, there hasnโ€™t been the level of effort put into hiking shoes as there has been for other products, like running shoes.

โ€œHiking is complicated,โ€ said Susan, โ€œbecause, like we are hiking on mud today which is different than hiking on something like snow or iceโ€ฆโ€

In general, certain features should be considered to deal with the all-terrain use of hiking shoes, including traction performance, flexibility, water migration, waterproofness, and stability.

Methods for testing will often vary by company. Though there is some standard testing. A wear testโ€”where a group of people wears and compares the product to a baseline is another possible method.ย  Wear tests can be as short as trying a product for an hour of exercise, for as long as a few weeks or even a month. Longer than that and designers canโ€™t meet product timelines that very much rely on a season product launch cycle.

According to Susan, the sizing and fit of hiking shoes are also important to test.

Even though shoes are often built to a particular size model, the materials and how they respond to wear vary a lot.ย  Thicker material might make the size envelope a bit smaller.ย  Stretchy material may make it larger.

Duct Tape

We walked further down the trail.

Henry chimed in regarding his experience with product testing shoes. โ€œIt was interesting to see what they (the designers) were looking for,โ€ he said.

One such โ€œlook forโ€ were hot points and blistersโ€”a common ailment among hikers, especially in certain conditions.

Susan told me about a time she did a hiking race on hot asphalt.  โ€œMy feet were burning!โ€ She exclaimed. โ€œI had to wrap them in duct tape.โ€

I told the group about a backpacking trip on sand that had a similar effect.

The good news?

โ€œI learned duct tape is amazing,โ€ said Susan.

I mean duct tape does fix everything. And in the design world what better tool can you turn to in a time of crisis?

โ€œWe arenโ€™t afraid of duct tape,โ€ Susan agreed.

Testing Woes

The weather continued to hold up as we walked along. Thought the mud only seemed to pick up. I told Susan and Henry we could go as far as they wanted.

โ€œWe wonโ€™t go 30 miles,โ€ was Susanโ€™s comical reply. These two were just plain fun to hike with.

Henry is not the only design student to be recruited for product testing.

โ€œCompanies know that they (her students) understand product,โ€ confided Susan. โ€œIt is hard to get good product feedback,โ€ she went on. 

If one thing is โ€œwrongโ€ with the product, often time feedback will come back negative, and the positive qualities of a product will be lost. Susan told me how countless times she has had testers come back with comments about the color of a product.

โ€œI didnโ€™t like the purple ones,โ€ Susan mimicked a difficult tester. โ€œIt can be really polarizing.โ€

If even there is a more substantial complaint, like an uncomfortable high top on a boot, often all other feedback is lost on this one major complaint.

Research

Of course, before product testing, comes a different type of feedbackโ€”research.

โ€œIf the research isnโ€™t there, then the design is completely invalid,โ€ Henry confessed.

Research usually comes in the form of interviews with potential users and looking at existing products on the market. Science also supports and informs product design.

Henry shared a project he worked on designing a base layer for visually impaired skiers using haptic technology to communicate with their guides. He interviewed several visually impaired skiers to determine where best to place the haptics.

Research is imperfect though.

โ€œSometimes you will design something fully based on science,โ€ said Susan, โ€œbut then someone will put it on, and it can nullify the invention.โ€

Looking uphill on the forested Wildwood Trail

Synergy

Soon we reached a large, upended treeโ€”its roots sticking out at us onto the trail and a sticky, thick mud bath below. As we carefully picked our way around it, or in some cases slid our way, I asked Susan to tell me more about how science informs product design.

She laughed because in a lot of ways it doesnโ€™t.

โ€œThere is a lot of research that happens in the lab that never gets applied,โ€ said Susan. โ€œIn the pure sciences, you get a finding and move on.โ€

Pure sciences are often funded that way. Scientists are supported for the initial body of workโ€”to answer a specific question. Once that knowledge is obtained the funding dries up.

However, at least at the University of Oregon, Susan is seeing a changeโ€”a shift to more collaboration between pure and applied science that seems to really be paying off.

Susan is part of the Wu Tsai Allianceโ€”a group comprised of scientists from a variety of backgrounds with the common goal of understanding human performance.

โ€œThe group formed last year, but we are already seeing the synergies,โ€ said Susan. โ€œFor example, a biomedical engineer designed and sensor, and one of my students is taking the sensor and putting it into footwear for their thesis project,โ€ she elaborated.

Fighting for Women

Like the obstacles to collaboration, the Wildwood trail continued to throw log hops in our way. As we clambered over another one, I asked Susan to share a bit about the projects she is involved in.

โ€œI have my fingers in a lot of different things,โ€ was her unsurprising response. She didnโ€™t seem the type to take life sitting down.

โ€œI am finishing some research on size and fit issues for women firefighters,โ€ Susan shared one of her projects.

โ€œGear for women isnโ€™t really designed for women,โ€ she explained. As a result, women firefighters are getting hurt. A fact that has been known for over a decade but hasnโ€™t been acted on until now.

Susan hopes to change all that by identifying important knowledge gaps.

As a next step, she is also working with another scientist that does machine learning to analyze 3-dimensional body scans of athletes.  The goal is to understand geometries beyond the basic chest-waist-hip measurements and interpret findings into better product performance.

Runners High

Susan is also using machine learning and body scans to better understand womenโ€™s running. She plans to survey thousands of runners and pair that data with scans to look for unknown patterns that relate to running performance. She hopes to tease out what is talked about in the common press when it comes to performanceโ€”to identify what works and what is just hype.

Innovate

At this point, Susan, Henry, and I reached a trail sign near a fire lane. Having gone a few miles, we decided to turn around. Thankfully the rain continued to hold off as we retraced our steps back.

Then I asked Henry, what he wanted to do with his career. His answer boiled down to one wordโ€”innovate.

โ€œIn our field, there is true athletic product innovation,โ€ said Susan.

However, the focus of that innovation has shifted over the years, leaving many sports neglected. According to Susan, outdoor sports, like skiing and climbing, are ripe for innovation.

Hiking is another one.

โ€œRunning shoes are designed for environmental and biomechanical needs,โ€ Susan explained. โ€œHiking shoes havenโ€™t really gotten there yet….that is why people go to trail running shoes.โ€

Environmental Wear

Another area ripe for innovation is waterproofing.

Though there are some products that work better than others, waterproofing than be challenging. For one, it doesnโ€™t last. And secondly, the chemistry is bad for the environment.

โ€œIt is part of the Teflon family of chemicals,โ€ said Susan.

So, companies turn to more environmentally friendly alternatives, but at a costโ€”a loss in product quality.

Walking through a beautiful green Douglas-fir Forest, it is hard not to want to protect it. So, I asked Susan, how we are doing in the sports industry with making environmentally safe products?

โ€œWe are not doing well,โ€ was her blunt response. As the sports product industry shifted from cotton and wool materials to synthetics in the 1960s and 1970s, sustainability went out the window.

โ€œIt is concerning when you learn more about it,โ€ said Henry.

However, there is some hope for the future. According to Susan, natural fiber companies are working on innovating to create more biobased products.

In addition, there has been an uptick in transparency regarding the sustainability of products. For example, Marmot now ranks products for their sustainability versus performance.

โ€œCompanies are going to be held accountable, โ€œSusan commented. She mentioned a panel she was on in Europe where there was a discussion on taxing people for purchasing unsustainable products. โ€œI think we may see things like that in the future,โ€ she continued.

Recycle, Reduce, Reuse

A few other ways companies are combating the issues of sustainability and durability are through the reuse and recycling of products. Companies like Patagonia will buy back products and repair them for resale. Other companies will recycle products to make something new.

Repair is another major movement. Susan mentioned Fjallraven in Portlandโ€™s Pearl District providing repair and waxing stations for waterproofing.

Keep it Simple

We continued working our way back to our cars, climbing the logs and sliding over the same mud slicks we encountered on our way in.  As we were nearing the trailhead, I asked Susan and Henry for some consumer tips for buying products.

โ€œFor me, it is not to overdo it,โ€ said Susan. She recommended choosing clothing that is comfortable, fits well, and allows for mobility. It isnโ€™t necessary to have high-tech gear on a day hike. Even jeans may be acceptable in most conditions.

โ€œThere is a lot of discussion around equity in sport,โ€ Susan said, โ€œespecially hiking.โ€ According to Susan, people see it as a โ€œwhite sportโ€ and only for the โ€œaffluent,โ€ but hiking is for everyone.

By keeping things simple, she hopes more people will see themselves on the trail. 

Wear and Tear

Another tip Susan emphasized was wear.

โ€œIf you havenโ€™t fully worn in something, you can have a really bad experience,โ€ said Susan.

โ€œYour body changes when you are hiking,โ€ she continued. โ€œFeet and hands can swell, for example.โ€

Taking the time to try out gear in a low stakes environment and wear it in is key to an enjoyable outdoor experience.

Luckily, some companies are creating return policies that allow consumers to really try out products before they fully commit to purchasing.

Functional Innovation

Innovative products that improve functionality is something else to look out for and consider when purchasing items.

Susan mentioned innovation in hydration as another example. Camelback and other bladder systems allow for a hands-free experience, while filters allow for longer and safer outdoor experiences. Both innovations have revolutionized outdoor sports.

Even something as simple as having the right size or style of pockets can make or break a product.

Keep Improving

As we neared the trailhead, I asked Susan one more questionโ€”Why does sports design matter?

According to Susan, sports product design is about maximizing human potential. It is also about the benefits of engaging in sport –  like health and happiness, available to everyone.

โ€œThere are an infinite number of problems to solve,โ€ said Susan, referring to the sports product industry.

Fortunately, the process of product design is iterative. And with new tools for design, products are improving.

Body scanning and machine learning are changing how products can be made. It may be that mass production changes in the future and more personalized sizing will become available to everyone.

โ€œThe tech is already there,โ€ Susan remarked. โ€œI know scientists that can look at your Facebook picture and tell what your body scan looks like.โ€

Hike Happy

In the meantime, consumers and hikers have a lot of options to choose from when it comes to sports product design. There are still some problems to solve. But, by keeping it simple and choosing products that function and wear well, you can still enjoy the benefits.

So, take a hike through the woods. Climb a mountain if you will. Paddle or float. Whatever sport you engage in, keep it simple and wear what works for you.

Perhaps Henryโ€™s advice is most apt and to the point: โ€œYou got to wear what makes you happy.โ€

Susan Sokolowski, Ph.D., is the director of the Sports Product Design Program and the University of Oregon. She has over 25 years of experience in the sports product industry.

Hike at McCully Mountain with a Wildlife Biologist

View of the McCully Mountain meadows

Open prairie grasslands, hummocky wet meadows, meandering rivers, and magnificent branching oak woodlandsโ€”before European settlement, Oregonโ€™s Willamette Valley was a very different place. A place blackened by fire and awash in waves of wildflowers. A sea of purple camas covered the hillsides, along with irises, cat’s ear lily, golden paintbrush, and more. Grand Oregon white oaks, with their spreading branches, grew singly or in woodland patches, completing the look.

Now, very little of these habitats remain in the Willamette Valleyโ€”lost to human development. It is a place dug up by plows and awash in pavement. A sea of houses covers the hillsides with agricultural fields everywhere in-between.

In recent years, as scarcity has increased, oak habitats in Oregon have been given more attention. Even sites on the edge of the valley are being considered for restoration by conservation groups and land management agencies.

McCully Mountain, just east of Salem, is one such site. A parcel of BLM land with a bit of oak on a wet meadow surrounded by private lands, and in need of a little elbow grease. 

So, with the help of volunteers and other staff, Corbin Murphy, BLM wildlife biologist, has been working for the last few years to restore the parcel. Or as he put it, โ€œcreate some habitat on the landscape.โ€

I met with Corbin on a wet spring day to take a look at the progress.ย 

The Hike

  • Trailhead: No official trailhead.
  • Distance: varies
  • Details: Park at the pullout on East McCully Mountain Road. No trailhead or signage. There are no amenities at this site.

Classic BLM

Corbin and I carpooled out to the McCully site along some backcountry roads, before reaching a small pullout. A faint trail led us through a Douglas-fir Forest a short distance.

โ€œThis is kind of classic BLM,โ€ said Corbin. In other words, a parcel of public land, abutted by private lands.

You see, in the late 1800s, as part of a settlement plan for the west, the federal government granted every other square mile swatch of land to the Oregon and California Railroad Company to fund the building of public transportation through the state, the other half was to be sold and distributed to settlers.

Unfortunately, fraudulent sales led to the reinvestment of the O&C lands where they were put under the jurisdiction of the U.S. Department of the Interior, General land Office (GLO). Today these lands are now managed by the Bureau of Land Management (BLM).

The problem is this โ€œcheckerboard patternโ€ of land ownership is a โ€œnightmare for management.โ€ Though there has been some consolidation of ownership, public and private lands still share extensive boundaries.

โ€œAccess and road problems are reoccurring,โ€ Corbin explained. And McCully is no exception. โ€œFolks can walk down the spur road to get to the BLM, it is public access,” despite warnings from signs posted on the gate.

ACEC

Eventually, the conifer forest peters out along a grassy ridge with views onto the surrounding hillside.

โ€œThis is the property line right here,โ€ said Corbin.

Oregon white oak grow in huddled bunches along the ridgeโ€”mostly smaller trees trying to get a foothold. A soggy meadow lays quietly below.

โ€œFor the BLM this is one of our Areas of Critical Environmental Concernโ€”an ACEC,โ€ said Corbin. As such, McCully receives special management attention to protect its natural resources.

ACECs are established for a variety of reasons. Some are established for geology; others for their cultural or scenic value; and others for habitat, for example.

McCully was designated an ACEC for its scenic value, natural systems, and wildlife value.

“Special habs,” as Corbin put itโ€”McCully is “not just some conifer forest… it is 80 acres of oak meadow.”

Views from the grassy ridge at McCully Mountain

Inverts

As we continued down the ridge, Corbin and I were cognizant of the wildlife all around us.

A Northern pigmy owl called out in the distance. Deer and elk scat lay in darkened clumps on the bed of green grasses and herbaceous plants at our feet. I nearly trip over a mountain beaver burrow entry hidden on the ground.

However, it was the smaller, less conspicuous critters that Corbin is really jazzed about.

โ€œThere has been a lot of work on megafauna, and especially rare species,โ€ Corbin explained, โ€œbut there are a lot of critters that are new to science and not studied. A lot of these are inverts.โ€

Invertebratesโ€”animals without a backbone, like insects, spiders, and wormsโ€”play many important ecological roles. Many are pollinators; others are decomposers, for example. And all are key parts of food websโ€”supporting vertebrate species, like birds.

Thus, studying invertebrates can tell us a lot about the functioning of an ecosystem.

Moths

One group of invertebrates that hasn’t recieved a lot of attention are the moths. Which is why Corbin was thrilled to have McCully Peak included in a moth study organized by researchers at Oregon State’s Arthropod Collection.

The study was intensive with survey data collected every two weeks from light traps set up at four different points acrooss the meadow.

โ€œGuess how many species we found?โ€ asked Corbin, a twinkle in his eye.

โ€œI donโ€™t know, twenty,โ€ I guessed reluctantly.

โ€œTwo hundred!โ€ Corbin exclaimed. โ€œAnd a bunch were for the first time documented in this county in Oregon,โ€ he went on gleefully.

Of course, these results were collected before restoration work got underway.

โ€œWe will come back and do some post-treatment monitoring,โ€ Corbin assured me.

Competition

Corbin and I continued to circle the forested meadow’s edge. Douglas-fir logs lay abandoned near their stumps along the ridge. Other conifers have been girdledโ€”a strip of bark removed in a ring around their trunks.

โ€œThe down wood and snags are important for wildlife,โ€ Corbin explains. Offering habitat for many species, including many of Corbinโ€™s beloved invertebrates.

Perhaps even more importantly, Oregon white oaks are slow-growing species and can easily be shaded out by fast-growing conifers. So, a big part of oak restoration involves getting rid of the competitionโ€”in this case, Douglas-fir. But rather than simply harvesting the Douglas-fir trees and hauling them off, the trees are left in place to decay.

Corbin was also quick to note that, though the Douglas-fir have a foothold now, the shallow soils in the meadows make it difficult for the trees to succeed long term.

โ€œMany are dying,โ€ Corbin points out, but while they live, they make it more difficult for the oak.

Down logs and girdled Douglas-fir trees

Invasive Species

In addition to competing with conifers, oak habitats face encroachment from alien invadersโ€”a.k.a. invasive species.

โ€œThis was all ringed with scotch broom,โ€ Corbin shared as we cut along the meadow’s edge, dodging poison oak as we went. Shiny geranium, another invasive species, grew in large uniform patches at our feet.

โ€œWe pulled and cut all the scotch broom about 2 years ago,โ€ said Corbin.

As Corbin and I headed down the hillside, we spotted a few new scotch broom sprouts. When it comes to invasive species, the work never really ends.

โ€œIt is going to be a constant battle,โ€ resigned Corbin.

Dead Scotch broom along the trail

Volunteers

A lot of the restoration work, including removing invasive species, was done by volunteers using clippers and machetes.ย  At McCully, several volunteer groups came out to help with the restoration work, including Northwest Youth Corps and Linn County Juvenile corrections, as well as a group from Backcountry Hunters and Anglers.

Volunteers also helped with basketing oaksโ€”encircling young oak with netting to protect against browse.

โ€œDeer are funny,โ€ Corbin chuckled, โ€œthey love oak.โ€  At one point, Corbin pointed out an oak that had been heavily browsedโ€”nary a leaf could be seen.

Thanks to volunteers, more of the oaks can escape these pressures and have a chance to make it to maturity.

โ€œI do love the opportunity to get the volunteers out,โ€  said Corbin. โ€œSomething like this is really fun too,โ€ he went on.

Corbin reminisced about the time the Backcountry Hunters and Anglers visited. Elk ran through the meadow and they saw a ton of wild turkey.

โ€œWe are coming back!โ€ they told Corbin after a long day of volunteering.

โ€œGood! This is your public lands, enjoy it!โ€ was Corbinโ€™s reply.

One of the basketed Oregon white oaks

Suspected Species

The sky is gray, threatening rain. Corbin and I continued past more young oak and patches of scotch broom toward the meadow below. 

Tracking down the hill, we followed a wide muddy path littered with deer and elk hoof impressions.

At the bottom of the hill is a wet meadow where yellow monkey flower grows in a wet seep. Fist-sized rocks lay scattered on the meadow that has been heavily grazed. The vegetation is clipped close to the ground in most areas. The scenery is beautiful, and wildlife clearly abundant.

Transfixed by the open, rocky expanse, I asked Corbin what sort of wildlife might use the space?

Well apart from the usual deer, elk, and other generalist species, Corbin mentioned several โ€œsuspectedโ€ species that he is hoping to find in the space. Streaked Horned Lark and Fenderโ€™s Blue butterflies, for instanceโ€”are two species associated with oak prairie in the Willamette Valley.

โ€œWe say โ€˜suspected,โ€™โ€ said Corbin, โ€œIf it is within the range and habitat requirements are all there.โ€

Boulder-strewn meadow

Desert Life

Another suspected species Corbin is excited about finding is the pallid bat.

โ€œThe pallid bat is a desert species that used to exist in the Willamette Valley,โ€ explained Corbin. Other desert species, like ponderosa pine, jackrabbits, Northern Pacific rattlesnake, and burrowing owls were also once present in the Valley. But, like the pallid ba, these have all but been eliminated.

According to Corbin, the pallid bat is unique from other bats in that they donโ€™t typically use echolocation but forage for ground-dwelling insects, like scorpions by sound. This can make them trickier to identify in the wild using passive acoustic recording units since they are not making ultrasonic calls to locate food.

โ€œThis is part of its historic range,โ€ Corbin noted, so they could be here, or move here, even if they havenโ€™t been identified yet.

Woodpeckers

The rhythmic thumping of a Northern Flicker sounded against the high-pitched songs of other bird species as we continued toward the forested edge of the meadow.

โ€œWhat about woodpeckers?โ€ I asked.

โ€œIt should be a feeding frenzy,โ€ said Corbin, looking out on all the girdled conifers. โ€œThere are a lot of downy and hair woodpeckers, flickers, and pileated woodpeckers.โ€

Woodpeckers forage in dead and decaying trees, making the wooded edges of the meadow with newly developing snags, a great place to feast.

Lewisโ€™s Woodpecker is another suspected species for the area, though none have been spotted yet. They were once widespread however due to habitat loss of mostly snags in oak, pine, and cottonwood woodlands their numbers are low. However, for all these species, Corbin is hopeful.

โ€œIf we create the habitat, they will come,โ€ he tells me.

Making Habitat

Dark clouds continued to gather, as Corbin and I walked adjacent to the forest, looking up at more girdled conifers. Corbin admitted that girdling is not the ideal way to create snags but it is quicker and cheaper than topping them.

โ€œIt is expensive to top them,โ€ he said, but โ€œit creates an opportunity for spores to land on top and heart rot to enter.โ€

Ultimately, cavities form, making the tree not only an excellent foraging site for woodpeckers but useful for nesting as well.

Legacy Tree

Soon a large snag came into view. This was no restoration project treeโ€”it’s open-top reached toward the sky.

โ€œThat is what we call a legacy tree,โ€ said Corbin. โ€œIt was probably part of a previous cohort,โ€ he speculated. โ€œA stand-replacing fire came through and that was the only one that lived.โ€

Snags are excellent habitat for many species. Legacy trees are even more exceptional. Their large girth can support species that depend on a larger diameter tree.

โ€œThose are great for bats,โ€ Corbin exclaimed. โ€œWe have another bat that is out here,โ€ he went on, โ€œthe fringed myotis.โ€ Named for the fringes of hairs that can be found between their back legs.

โ€œIt loves snags,โ€ said Corbin. โ€œIt roosts in the sloughing bark,โ€ he continued.

However, in this case, size does matter. They need a larger diameter snagโ€””61 inches on average,โ€ according to Corbin for roosting. โ€œIt is one of the limiting factors for fringed myotis.โ€

Large Down Wood

The life or death, as it were, of a legacy tree does not end there. When snags eventually fall to the ground, they continue to support species dependent on larger trees for survival. For example, Oregon slender salamander, an endemic to the Cascades, has only been found in large down wood.

Corbin expressed concern about these species. โ€œMaybe around the turn of the century there were really big trees,โ€ butโ€ฆ โ€œfast forward and much of our forests are on a 30-to-40-year rotation.โ€

Large trees begat large snags begat large down wood. If we donโ€™t have enough large trees, where does that leave us?

So, perhaps it is not surprising that Corbin called legacy trees โ€œgems on the landscape.โ€ They are both valuable and rare.

Legacy tree

Intersection

We continued to follow the forest down to the property line, where BLM land abuts private. As we reached the fence, we could see another clear cut could be seen through the trees.

โ€œWell, I guess there is more meadow now,โ€ Corbin smirked.

A turkey sounded in the distance. Surprisingly, Corbin called back. The turkey gave no response. It remained silent, even after I gave a half-hearted gobble-gobble.

We passed a girdled tree that had fallen over. A few purple calypso orchids grew near its base. Then a bit later, Corbin spotted invasive mullein that gave him pause.

Eventually, we began to edge our way back through the meadow at the back end of the property. It was at this point, that it began to shower.

We had reached a point of intersectionโ€”between forest and meadow, public and private, and wet and dryโ€”a confluence in more ways than one.

โ€œAnytime you have the confluence of conifer forest, oak woodland, and prairie,โ€ Corbin stated, โ€œthat is where you are getting cover, forage, and nesting opportunity.โ€

That is where you find wildlife.

Secret Garden

We soldiered on over the soft hummocks of grass and herbaceous plants. Rocky outcroppings and undulating hills gave the walk dimension. Prairie stars and rosy plectritis also made an appearance in these lower meadows.

 โ€œThere is a lot of BLM ground like that that people just never really get to,โ€ Corbin remarked as we passed by a patch of popcorn flower. โ€œA fun part of my job is getting to explore these areas.โ€

This certainly rang true for McCully. There was no one around but us… and the deer.

Looking up from the lower meadows

Boundaries

As the rain picked up, Corbin and I decided to turn and loop back up to our vehicles. Corbin led the wayโ€”following the path of least resistance and least poison oak.

I was really starting to feel an affinity for the placeโ€”wildflowers have a way of doing that to me. Inspired by the unique landscape, I wondered just how much land BLM has designated as areas of critical environmental concern (ACEC). So, I asked Corbin.

โ€œIt is hard to tell,โ€ he responded, โ€œdifferent field offices have different amounts of ACEC.โ€

For the Cascades field office, running from the Columbia River Gorge to Sweet Home, where Corbin works, he estimated a figureโ€”โ€œthere are roughly fifteen thousand acres out of one-hundred-seventy thousand acres, about 8 percent in the Cascades Field office and about 2 percent across Western Oregon BLM.โ€

In shortโ€”there is not a lot.

Each ACEC is specifically delineated to encompass just the small area of land that contains a unique feature, like a rock garden or bog. ACECs are by definition scarce. Anything that isnโ€™t unique makes up BLM timber reserves, some of which are open to timber sales and sustainably harvested.ย ย 

Heading Home

We continued up the hill, passing by deer bedsโ€ฆ โ€œ1, 2, 3, 4, 5โ€ฆโ€ Corbin counted as we walked by. We followed a creek bed that looked more like a slip and slide where you could see just how shallow the soil was above the exposed bedrock.

โ€œNot even a couple of inches of soil on that,โ€ Corbin exclaimed.

Eventually, we re-entered the familiar forest that we had walked through at the beginning of our hikeโ€”back into the ordinary.

Looking back through the trees at the oak meadow, it appeared almost magic against the grey skyโ€”a secret tucked away in the west hills of the Cascades.

But McCully Peak isnโ€™t a secret. It is one of many unique places scattered throughout our public landsโ€”welcoming a visit.

Corbin Murphy is a Wildlife Biologist for the Salem District of Bureau of Land Management. He has been with the BLM for 13 years and currently works in the Cascades Field Office. He has also worked for the U.S. Forest Service.