Incised Meanders, SE Utah (square)..

erosion, desert, aerial, entrenched, canyons

Wildwood Falls, Oregon

Wildwood Falls and basalt, Oregon

waterfalls, stream, water, volcanic

Nooksack Falls, North Cascades Washington.

Nooksack Falls, North Cascades Washington.

water, waterfalls, sedimentary

waterfall and granitic rock (vertical)

Christine Falls and Tatoosh granodiorite, Mount Rainier National

granite, erosion, igneous, intrusion, intrusive, granitic, waterfalls

Mojave Desert, California (Pan)

Southward views of Amargosa Valley in the vicinity of Eagle Mountain. Eagle Mountain lies just south of Ash Meadows, where the Amargosa River gets its start. Aerial view of Eagle Mountain, a tilted fault block, in the center of the Amargosa Valley. Here, the Amargosa River empties out of a large playa.

playa, evaporite, arid

Sea stacks in Southern Oregon

Seagulls watch the waves crash near Brookings, Oregon.

coastline, erosion, Pacific Ocean

Blueschist Block (vertical)

High tide pulling sea stacks toward a blueschist block on Bandon Beach, Oregon

seastacks, metamorphism, subduction zone, metamorphic, erosion, sand, coastline, Pacific

Basaltic Headland, Oregon

The southernmost coastal exposure of Columbia River Basalt Group in Seal Rock, Oregon.

This particular body is actually intrusive. dike, igneous,

Sea stacks at Bandon, Oregon (pan)

erosion, Pacific ocean, coast, foam

Monument Valley, Utah (pan)

Monument Valley

Weathered and eroded, these isolated rock formations make up Monument Valley in southeastern Utah and northern Arizona. Formed by sandstone deposits and geologic uplift, the valley’s buttes and mesas sit around 5,600 feet above sea level and spans roughly 91,700 acres. (Image ID# desert)

Sea Stacks, Bandon, Oregon (pan)

Sea stacks overlooking the Pacific Ocean.

erosion, Pacific ocean, coast, sand, water, reflection

Badlands erosion of lakebeds (pan)

Badlands erosion

desert, panorama

folded ribbon chert (Pan)

Folded radiolarian chert contains billions of microscopic fossils from plankton that were most commonly found in nutrient-rich ocean waters. These skeletons of single-celled plankton are called radiolaria.

Panorama of folded beds of Jurassic-Cretaceous age radiolarian chert found in Marin Headlands, California (170326-42)

Folded Radiolarian (ribbon) Chert.

Folded radiolarian chert contains billions of microscopic fossils from plankton that were most commonly found in nutrient-rich ocean waters. These skeletons of single-celled plankton are called radiolaria.

anticline, syncline, structural geology, sedimentary

Folded radiolarian (ribbon) chert

Overturned anticline and syncline in radiolarian chert.

anticline, syncline, structural geology, sedimentary Marin Headlands, California. Photo is 2 meters across. (Image ID # 111205-12)

Folded radiolarian chert (Vertical)

Overturned folded radiolarian chert

anticline, syncline, structural geology, sedimentary

Sand Dunes, Mojave Desert, California

Tall dunes cast shadows over the sand

eolian, wind, Ibex, artsy

Sand Dunes, Mojave Desert, California

Clusters of sand dunes keep each other company in a quiet desert.

eolian, wind, Ibex

Sand Dunes, Mojave Desert (vertical).

High desert sand dunes

eolian, wind, Ibex

Mudcracks in playa surface

Mountains surround the parched desert

arid, dry, dessicate, drying