Geology

Double yolk thunderegg: Macro Monday

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I call this a double yolk thunderegg because two of these round rocks formed together. Thundereggs are Oregon’s state rock. You never know what’s inside until they’re cut open, like this one, or already cracked open.

Double yolk thunderegg

This double yolk thunderegg is from Richardson’s Rock Ranch, north of Madras, Oregon. Though you can no longer dig there, you can purchase cut, polished, and raw rocks of many kinds from their large store.

Rough side of rock

If you want to dig for thundereggs, visit Priday Polka-Dot Agate Beds, about 9 miles northeast of Richardson’s. See my post about this amazing place if you want to uncover ENORMOUS thundereggs.

Macro Monday

Pickled herring fossil?: Macro Monday

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Could this be a pickled herring fossil? I got this fossil from my mom and don’t know anything about it’s history. It looks like the herring fish pictured on this Green River Fossil site. Though I was hoping it was something rare, fossils of this small fish are common.

pickled herring fossil

The Green River Formation, located in parts of Colorado, Wyoming, and Utah, is one of the best places to find fish fossils in the world.

Macro Monday

Angles of the Earth: LAPC

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Angles of the Earth sculpted by pounding waves.

Angles of the earth
Seaside sandstone formations at Pacific City, OR

Rising on the edge of a caldera in olivine and crimson shades.

Volcaniclastic sedimentary rocks
Volcaniclastic sedimentary rocks at Prineville Reservoir, OR

Fracturing leaden lava flows, brushed with a glow of lichens.

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Visiting the Wild West : LAPC

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I feel most at home when visiting the Wild West.

In the West, tall tales are told in layers of intense and pale colors.

Visiting the Wild West
Painted Hills, John Day Fossil Beds National Monument, Oregon

Odd-looking plants stand tall, like characters in a children’s picture book.

Joshua Trees
Joshua Tree National Park, California

You may find ancient hidden stories exposed by wind and water.

Grand Canyon
Grand Canyon National Park, Arizona

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This and that rock: Macro Monday

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This and that rock from Fischer Canyon, Oregon. According to the Central Oregon rockhounding map, published by the Bureau of Land Management, you can find petrified wood, jasper, and agate here. Other sources list calcite and quartz as being at this site.

This small conglomerate includes several types of rock that merged together.

this and that rock
conglomerate rock

Macro Monday

GIANT thundereggs at Priday Polka-Dot Agate Beds: LAPC

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North of Madras, Oregon, you’ll find giant thundereggs tucked away on a hilltop near the ghost town of Ashwood. Polka-dot agates and thundereggs occur naturally at the Priday Polka-Dot Agate Beds.

Agate beds

The thundereggs you’ll find here are amazing! You never know what kind of treasures you’ll find on the inside.

Close up of rock

Giant thundereggs
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Petrified wood bits – Bear Creek: LAPC & Macro Monday

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Last month, we collected petrified wood bits from Bear Creek, south of Prineville Reservoir in Oregon. The following pieces are one inch or less in size. Getting decent photographs of these tiny stones proved to be a challenge.

I set up a tabletop studio and tried a Panasonic Lumix and a Galaxy Ultra phone camera. I had to keep adjusting the spotlights outside of the studio. Each stone was given a quick spritz of water to bring out their color. After many unsuccessful attempts with both cameras, I finally got some good shots with the Panasonic.

petrified wood
Close up of wood
petrified wood
close up of rock
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Lower Crooked River drive – am & pm: LAPC & FFC

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A couple days ago, we went on a Lower Crooked River drive. We were there early in the morning, attempting to avoid an incoming storm system. I remembered I had been there about a year earlier for an afternoon drive. How would the lighting differ in the photos taken on both trips?

Just south of Prineville, Oregon, the Lower Crooked River Back Country Byway winds its way along the Crooked River. The 43-mile long road meets up with Highway 20 to the south.

This post highlights the 8-mile section between Prineville Reservoir and Castle Rock. See map at the end of the post. On this drive, the curving lines of the road and river contrast with the straight lines of geological features.

A morning drive

As we drove north from the reservoir, shadows covered the east side of the road. The morning light cast a warm glow over the canyon lands.

Canyon views

Basalt columns looked pretty in full light…

Columnar basalt

But took on more character in the shadows.

columnar basalt
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Stories unfolding in the rock in Wyoming: LAPC

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When I drove the highway west of Cody, Wyoming, I saw stories unfolding in rock formations along the road.

The short paved trail in the photo below takes you to a place of wonderment along the North Fork Shoshone River.

Stories unfolding from a distance

The rock formations along the ridgetop are a village of homes with a view carved by the common folk. At one time, the richest man in town lived in a round home atop the tallest tower. He bragged about his wealth to anyone who would listen. One day, he danced with glee around and around inside the house. It fell to the ground, but he survived. From then on, he lived a humble life in a square home and he never danced again.

Stories unfolding in rock

Sheep Mountain is a distinctive landmark about 15 miles southwest of Cody.

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Stilbite up close: Macro Monday

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This is a beautiful piece of stilbite up close. Specimens like these, from the stilbite subgroup, can be found near Mill Creek, Polk County, Oregon. The crystals on this mineral are gorgeous, but I also like the parallel lines surrounding the cavity in this piece.

Stilbite up close

Macro Monday

Labradorite up close: Macro Monday

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Here’s a picture of a piece of polished labradorite up close. This feldspar mineral has a unique appearance. Its iridescence catches your attention and is referred to as “labradorescence.” I like holding a piece with a lot of color and tilting it to see different colors in the light. The parallel lines of color within the stone, the twinning surfaces, reflect the light.

Labradorite up close

Macro Monday

Along the Mud Volcano Trail: Monochrome Monday

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These are some of the sights you’ll see along the Mud Volcano Trail in Yellowstone National Park.

Here is Mud Volcano, located at the base of the trail. It used to have a 30-foot tall volcanic cone. Albert C. Peale, a member of the 1871 Hayden Geological Survey, noted, “The trees all about this place are coated with mud showing that it throws out mud sometimes to a considerable height.”

However, sometime prior to the area being designated a National Park in 1872, the cone blew up in an eruption. This area is still worth a visit. The rumbling sounds, smell of sulfur, and various thermal features make it a treat for the senses.

Mud volcano

Here’s a closer look at the cracked mud around the base of Mud Volcano.

close up of cracked mud

The 0.7-mile trail includes these stairs that take you up to Black Dragon’s Cauldron and the Sizzling Basin. They certainly came up with some interesting names for these thermal features!

Stairs on Mud Volcano Trail

Monochrome Monday

Special somethings around the house: LAPC

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This post includes photos of smaller-sized special somethings collected over the years.

Special somethings discovered

The first photo shows a radiator cap from a 1928 Pontiac. We found it buried in the forest where we used to live. The Indian brave sculpture is so detailed!

Special somethings radiator cap

The next photo shows a picture of my favorite salt & pepper shakers. This pair was found in an antique store in Snohomish, Washington. I’m not sure what year these were made, but they look like Depression-era glassware.

Depression glass S & P

Things from the earth

The next photo shows a piece of black obsidian. I found this piece at Glass Buttes, about an hour east of Bend, Oregon. This rock has radiating curves that developed as it cooled thousands of years ago.

Special somethings black obsidian
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A Painted View: Pull Up a Seat Challenge

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A painted view in the Painted Hills in John Day Fossil Beds National Monument, Oregon. Rainfall from a passing storm brought out the colors of this natural wonder.

A painted view
Painted Hills, Oregon

Pull Up a Seat Challenge

Observatory of the Past: LAPC

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This observatory of the past is on McKenzie Pass near Sisters, Oregon. Dee Wright Observatory was built in 1935 by the Civilian Conservation Corps to showcase the human and geological history of this location. The round tower sits atop a small hill.

Observatory of the past

Here’s what it looks like when you approach it from the west. It’s one of the odder roadside attractions in Oregon but one that should not be missed.

Observatory of the past

The Observatory is constructed of local lava rock. The triangular-shaped rail supports look like rock cairns.

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Oregon mountains from afar: LAPC

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Today I’m featuring views of Oregon mountains from afar. We’re lucky to have wide open views of these landmarks.

The first picture shows a view of the iconic Cascade Volcanoes west of Bend, Oregon. From left to right you can see Broken Top, South Sister, Middle Sister, North Sister, Black Crater, Mount Washington, Three Fingered Jack, Black Butte, and Mount Jefferson. Visitor can drive scenic roads, hike, rock climb, bike, go boating, fish, hunt, and nature watch around these peaks. This map helps you find the activities you’re looking for.

Oregon mountains from afar

The second picture shows mountains east of Terrebonne, Oregon. The highest peak is Gray Butte, where I’ve seen lots of stunning wildflowers in the spring. At the base of the mountains, on the left side, you can find Smith Rock State Park. This park is a destination for rock climbers and hikers from around the world.

Oregon mountains from afar
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Pushed by hot magma haiku: Haiku Prompt Challenge

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pushed by hot magma
through ancient layers of rock
the pull of dawn’s light

pushed by hot magma
Grand Prismatic Spring from overlook, Yellowstone National Park

Ronovan Writes Weekly Haiku Poetry Prompt Challenge # 371 – Pull and push

Kayaking at Prineville Reservoir: LAPC

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We went kayaking in early May at Prineville Reservoir after an unexpected change of plans. The high elevation lake we had planned to visit was not yet open.

The 15-mile long Prineville Reservoir covers 3,030 acres. It’s located south of Prineville, near the geographic center of Oregon.

I had never kayaked here before and wasn’t sure what to expect. The geology surrounding the lake was a pleasant surprise.

This formation was smooth and vegetated on one side and bursting with colorful rocks on the other.

These layers of color looked like a slice of spumoni ice cream.

Layered rock formations

When I paddled a little closer, the layers rippled with texture.

Layered rock formations
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Norris Geysers – big & little: LAPC

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We just returned from a trip to Yellowstone National Park and the Norris geysers were spectacular, as always. Some of the geysers are big and showy; others are small but still impressive.

The picture below is of Steamboat Geyser. Gray stone, dappled with red and brown-colored rocks, surrounds the vent.

In 2020, this geyser erupted 48 times. Water shoots 300+ feet into the air, making it the tallest in the world. This year, once again, we just missed its latest eruption. It went off on May 31, 2021, the day we drove to the park from Bend, Oregon.

Steamboat Geyser

Here’s an overview of the basin. If you don’t have time to walk the trails, You’ll get great views from this observation area.

Norris Geyser Basin

Here’s a view from the trail. There are geysers everywhere you look in the Norris Geyser Basin.

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Volcanic views from Lava Lands: Pull up a Seat Challenge

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I recently hiked the Trail of Molten Lands at Lava Lands Visitor Center and paused to take in the volcanic views. The center is located within the Newberry National Volcanic Monument, a place with many recreational opportunities.

I took these photos from the Phil Brogan Viewpoint. On a clear day, you can see Mt. Bachelor, the Three Sisters, and other peaks in the distance. On this day, clouds covered them in soft shrouds. The visitor center reopened on May 20, a couple days after my visit. It’s a great place to learn more of this area’s volcanic past.

Volcanic views from Lava Lands, Oregon

Here are a couple pictures of the volcanic views from a closer angle.

Lava Lands, Oregon

This 1.1 mile trail winds through basalt lava flows surrounding Lava Butte to the viewpoint.

Volcanic views from Lava Lands

Pull up a Seat Photo Challenge Week 22

Crack in the Ground – An amazing sight!: LAPC & FFC

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Last week we visited Crack in the Ground in Central Oregon near Christmas Valley. You may be wondering what exactly this place is. Well… it’s a huge crack in the ground in the middle of the desert.

I wasn’t sure what to expect, but I was impressed by the crack’s picturesque angles and curved surfaces.

Crack in the Ground, Oregon

There’s a 2-mile trail inside that reaches a depth of ~70 feet below the surface. We took the left path that has a more gradual entrance. It’s in the middle of the picture below. This trail is relatively easy but if you go the whole length, expect to climb over boulders and through some cracks.

2-mile trail near Christmas Valley, Oregon

But how did this crack get here? It’s an ancient volcanic fissure. I learned in most climates, fissures fill up with soil and rock from erosion. Since it’s so dry here, there has been relatively little filling.

Fissure near Christmas Valley, Oregon

Crack in the Ground sits within the Four Craters Lava Bed. During the Pleistocene, four cone volcanoes were active here. A shallow depression formed when older heavier rock sunk. The fissure opened near the edge where there was tension along a fault zone. This Bureau of Land Management map shows the extent of the lava beds and the location of Crack in the Ground.

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Pine trees at Lava Lands: Thursday Tree Love

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Pine trees towering over an ancient lava flow at Lava Lands Visitor Center, in the Newberry National Volcanic Monument, Oregon. You can see South Sister and Broken Top in the distance.

Pine trees at Lava Lands, Oregon

The 0.4-mile Trail of the Whispering Pines winds its way through the forest near the visitor center. You get great views of pine trees, Lava Butte, and several nearby volcanoes. This path sits on part of Newberry Volcano, a 1,200-square mile shield volcano.

South Sister, pictured on the left above, is the youngest and most geologically active of the Three Sisters volcanoes. The mountain last erupted 2,000 years ago, but a “bulge” began forming in 1997. By 2001, the bulge grew to 9 inches in height and 10 miles in diameter. Its growth since that time has slowed considerably. Both South Sister and Newberry are regularly monitored for volcanic activity.

Thursday Tree Love

An amazing collection – Baker City Rocks!: LAPC

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When I walked around a corner into a gallery at the Baker Heritage Museum a couple years ago, I didn’t know what to expect. Wow, what a special moment! As you may know, I like rocks and this is an amazing collection of rocks, minerals, and fossils.

One of the first pieces you see is a 950-pound crystal from Arkansas. I would love to have something like that in my rock garden.

Giant crystal from Arkansas

Two sisters in Baker City, Mamie Cavin and Elizabeth Cavin Warfel, collected specimens for 45 years and donated their collections to the museum in 1983. The 18-ton Cavin-Warfel Collection, together with other donations at the museum, is considered to be one of the best collections in the country. In fact, at one time the Smithsonian offered $500,000 to acquire it.

Cabochons and cut pieces of picture jasper cover one wall. Cabochons are gemstones that have been shaped and highly polished, rather than faceted. Billy Wyatt donated this collection.

  • An amazing collection in Baker City

Colorful specimens of green malachite and blue azurite are in this cabinet. Both are secondary minerals found in copper deposits. Malachite is one of my favorites and I have a few in my collection. The Oregon Department of Geology and Mineral Industries donated specimens related to mining to the museum.

Malachite and azurite
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A cluster of crystals up close: Macro Monday

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A cluster of crystals

Close up view of a cluster of crystals sprouting off of a matrix.

Macro Monday

Steam-filled Yellowstone landscapes: LAPC

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During the chilly winter months, I sometimes think of the steam-filled landscapes of Yellowstone National Park. I wish I had a natural hot spring in my backyard. The thermal activity beneath Yellowstone is always producing steamy white clouds.

This view is from the Artists’ Paint Pots trail. Lots of contrasting colors and great views of the steaming basin from the top of the trail.

Steam-filled Yellowstone landscapes

This is a hot spring near Morning Glory Hot Spring, one of my favorite sites in the park. See the ravens enjoying the warm water?

Ravens at Yellowstone National PArk

Grand Prismatic has rainbow colors, layered soil, and lots of steam. Did you notice the bison tracks in the foreground?

Steam-filled Yellowstone landscapes

The bison spend time near the hot springs throughout the year. Here’s a pair grazing near a boardwalk trail.

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Marvelous Malachite up close: LAPC

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Today I’m sharing close up photos of marvelous malachite. According to geology.com, malachite is a “green copper carbonate hydroxide mineral.” The site also refers to its striking green color and that’s why I collect it.

This first piece has a rough texture and interesting shape. For scale, it measures 1.5 x 1.0 inches.

Marvelous malachite up close January 2021
Rough green stone close up January 2021

The second piece is opposite of the first – rounded shapes and smooth textures. It measures 3.75 x 1.5 inches.

Marvelous malachite up close January 2021
Close up of green stone January 2021
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Igneous rocks up close: Macro Monday & SS

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The following images of igneous rocks up close were taken in my yard near Bend, Oregon.

Igneous rocks Bend, Oregon November2020

What’s an igneous rock? Geology.com describes them as being “formed from the solidification of molten rock material.” For example, granite, gabbro, basalt, scoria, and obsidian are all types of igneous rock.

Igneous rocks Bend, Oregon November2020

You probably notice some of these rocks have round bubble-like holes in them. These “vesicles” form when gas is trapped within the melted rock at the time it cools and turns solid.

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Wandering the roads of Utah: LAPC

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The Lens-Artists Photo Challenge this week is the long and winding road. Wandering the roads of Utah a few years ago, we saw many picturesque roads.

The Mt. Carmel Tunnel in Zion National Park.

Wandering the roads of Utah, Zion National Park May 2017

Winding dirt roads bordering the canyons in Canyonlands National Park.

View of Canyonlands National Park, Utah May 2017

Utah State Route 95 curves down towards the Hite Bridge in Lake Powell.

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My Mount St. Helens Adventure: FOWC

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On May 18, 1980, a trip to help band golden eagles at the Yakima Canyon in eastern Washington turned into an unexpected Mount St. Helens adventure.

Mount St. Helens, Washington March 1980
Mount St. Helens in March 1980

The adventure begins

I was part of the Young Adult Conservation Corps, working for the Washington Department of Game in Olympia, Washington. We spent most of our time in the office, but we took occasional field trips. One of the wildlife biologists invited four of us to help him band eagles and we were excited to get out in the field. 

Virginia rail by Becky Matsubara
Virginia rail by Becky Matsubara

     We piled into John’s Volkswagen van and took off for eastern Washington. John suggested stopping at Crab Creek Habitat Management Area, 20 minutes south of Royal City, to do a little birdwatching before driving south to meet the biologist. We stopped and saw yellow-headed blackbirds, cinnamon teal and other kinds of ducks, a short-eared owl, and two Virginia rails with a newly hatched chick.

Google map showing location of Mount St. Helens & Royal City, Washington
The red marker indicates the location of Mount St. Helens and the yellow marker shows the location of Royal City, Washington.
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Making the cut-Capitol Reef National Park: LAPC

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The Lens-Artists Photo Challenge this week is cropping the shot. I’m sharing before and after images taken at Capitol Reef National Park near Torrey, Utah. These pictures show examples of making the cut to highlight the subject matter.

Sometimes you want to cut a road out of the picture so you can focus on the scenery. I loved the layered land forms at this park.

Capitol Reef National Park, Utah May 2017
Before…
Making the cut (cropped image) Capitol Reef National Park, Utah May 2017
and after.
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