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Offset cinder cone
Aerial view of cinder cone offset by southern Death Valley fault zone, Death Valley National Park, California. (3175-08)
Download ImageFault scarp cutting alluvial fan
Aerial view of Fault scarp cutting alluvial fan, Death Valley National Park, California. (3175-040)
Download ImageAngular unconformity, Washington (vertical)
Angular unconformity between Pleistocene beach gravels and tilted and overturned turbidites of Hoh accretion assemblage, Olympic National Park, Washington (30-6258)
Download ImageCrest of sand dune, Colorado
Dune crest, Great Sand Dunes National Park, Colorado. (3130-01)
Download ImageWind ripples in sand, Colorado (vertical)
Wind ripples in sand, Great Sand Dunes National Park, Colorado.(3130-05)
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Wind ripples on sand dune, Colorado (vertical)
Wind ripples on sand dune, Great Sand Dunes National Park, Colorado.(3130-03)
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Glacial Lake in cirque, Montana
Hidden Lake occupies a glacial cirque in Glacier National Park, Montana. Reynolds Mtn in background is a glacial horn. Bedrock is Proterozoic rock of the Belt Supergroup. (30-9566)
Download ImageSoil in subalpine forest, Montana
Soil developed on Cretaceous sandstone in subalpine forest, Montana. (30-9607)
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Angular unconformity, Olympic Coast, WA
Angular unconformity between Pleistocene beach gravels and tilted and overturned turbidites of Hoh accretion assemblage, Olympic National Park, Washington (30-6249)
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Intrusive rock varieties in facing stone
Intrusive rock varieties in facing stone. Granitic rocks on top; gabbro on bottom. (30-9121
Download ImageGlacial Lake, N Montana (vertical)
Hidden Lake occupies a glacial cirque in Glacier National Park, Montana. Reynolds Mtn in background is a glacial horn. Bedrock is Proterozoic sedimentary rock of the Belt Supergroup. (30-9534)
Download ImageGlacial Lake in cirque, Montana
Hidden Lake occupies a glacial cirque in Glacier National Park, Montana. Reynolds Mtn in background is a glacial horn. Bedrock is Proterozoic sedimentary rock of the Belt Supergroup. (30-9535)
Download ImageGlacial Lake in cirque, Montana
Hidden Lake occupies a glacial cirque in Glacier National Park, Montana. Reynolds Mtn in background is a glacial horn. Bedrock is Proterozoic sedimentary rock of the Belt Supergroup. (30-9527)
Download ImageGlacial Lake, Northern Montana
Hidden Lake, a glacial lake in Glacier National Park, Montana. Bedrock is Proterozoic sedimentary rock of the Belt Supergroup. (30-9521)
Download ImageWillis Wall of Mt. Rainier, WA
Aerial view of Willis Wall of Mt. Rainier, Washington. (30-9241)
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