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Uplifted erosional surface, Colorado (Pan)
Panoramic view of Low-relief Eocene age “peneplain” uplifted to high elevations in Rocky Mountain National Park, Colorado. (100806-pan)
Download ImageAndrews Glacier, Colorado
Andrews Glacier, a small cirque glacier in Rocky Mountain National Park, Colorado (100806-91)
Download ImageTalus, produced by ice-cracking, Colorado
Talus, produced by ice-cracking (frost-wedging), Colorado (100806-78)
Download ImageRock glacier and tarns, Colorado
Rock glacier, glacial tarns, and U-shaped valley of Loch Vale, Rocky Mountain National Park, Colorado. (100806-42)
Download ImageAndrews Glacier, Colorado
Andrews Glacier, a small cirque glacier in Rocky Mountain National Park, Colorado (100806-35)
Download ImageSahalie Falls, Oregon Western Cascades
Sahalie Falls spills over a 3000 year old basaltic lava flow in the western Cascades of Oregon (191012-24)
Download ImageGlacial moraine-dammed lake, Oregon
Wallowa Lake and glacial moraine –the lake is dammed by the moraine. NE Oregon. (191010-29)
Download ImageGlacial moraine-dammed lake, Oregon
Wallowa Lake and glacial moraine –the lake is dammed by the moraine. NE Oregon. (191010-14)
Download ImageSnake River and Hells Canyon (vertical)
Snake River and Hells Canyon, Oregon-Idaho (191009-123)
Download ImageSnake River and Hells Canyon, Oregon-Idaho
Snake River and Hells Canyon, Oregon-Idaho (191009-122)
Download ImageSpheroidal weathering in basaltic rock
Spheroidal weathering in basaltic rock, Idaho (191109-95)
Download ImageSpheroidal weathering in basaltic rock
Spheroidal weathering in basaltic rock, Idaho (191109-89)
Download ImageSpheroidal weathering in basaltic rock
Spheroidal weathering in basaltic rock, Idaho (191109-86)
Download ImageSeven Devils Mountains, Idaho
Seven Devils Mountains, on the edge of Hells Canyon, Idaho (191007-61)
Download ImageWhipple Mountains Detachment, California
Whipple Mountains Detachment, between the greenish slopes of chloritized metamorphic rock and upper plate of steeply tiled sedimentary rock, SE California (4512-34)
Download ImageDetachment fault, Death Valley, CA
Copper Canyon Turtleback fault, between the metamorphic rocks (green slope) and Pliocene sedimentary rock (reddish brown), a detachment fault in Death Valley, California (4512-31)
Download ImageNormal faults and volcanic rock
Imbricate normal faults and tilting of volcanic rock, Death Valley, California (4512-29)
Download ImageTilted ash flow tuff, SE California
Tilted ash flow tuff in the Miocene Nova Basin of Death Valley National Park, California (191104-39)
Download ImageTilted ash flow tuff, SE California
Tilted ash flow tuff in the Miocene Nova Basin of Death Valley National Park, California. Notice the interbedded gravel deposit. (191104-35)
Download ImageVentifacts, Death Valley, California
Ventifacts, sculpted from windblown sand and dust, Death Valley National Park. Fault-bounded Black Mountains in background. (191103-27).
Download ImageSpring and salt pan at Badwater, Death Valley
Spring and salt flats at Badwater, Death Valley National Park, California. Salt-tolerant pickleweed lines one of the channels. (191103-7).
Download Image