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Willamette and Columbia Rivers, OR-WA (Vertical)
Aerial view of the confluence of the Willamette and Columbia Rivers, Oregon-Washington. View downstream. The Willamette is the river that joins the Columbia at a high angle. (230610-12)
Download ImageMultiple landslide tracks, SE Alaska
Multiple landslide tracks, SE Alaska (150622-27)
Download ImageMendenhall Glacier, Juneau, Alaska
Mendenhall Glacier, Juneau, SE Alaska (150621-165)
Download ImageToe of Mendenhall Glacier, Juneau, Alaska
Toe of Mendenhall Glacier, Juneau, SE Alaska (150621-118)
Download ImageMendenhall Glacier, Juneau, Alaska
Mendenhall Glacier, Juneau, SE Alaska (150621-115)
Download ImageMendenhall Glacier, Juneau, Alaska
Mendenhall Glacier, Juneau, SE Alaska (150621-112)
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Isoclinal fold and slaty cleavage, SE Alaska
Isoclinal fold and slaty cleavage, SE Alaska (150617-35)
Download ImagePyramid Island, a recessional moraine in Chilkat Inlet, SE Alaska
Pyramid Island, a recessional moraine in Chilkat Inlet, SE Alaska (150616-140)
Download ImageHerbert Glacier, SE Alaska
Herbert Glacier and medial moraines, SE Alaska (150616-71)
Download ImageMeander loop in Mendenhall River, Juneau, Alaska
Meander loop in Mendenhall River, Juneau,SE Alaska (150616-37)
Download ImageTurtle Cove Member of John Day Fm, Oregon
Turtle Cove Member of the Oligocene John Day Formation as exposed in the Blue Basin part of the Sheep Rock Unit of John Day Fossil Beds National Monument (110806-33)
Download ImagePermian Reef Complex, Texas (Pan)
El Capitan, massive Permian limestone, forms the central part of the Permian Reef Complex that makes up the Guadalupe Mountains of west Texas. Below the peak are shale deposits from deeper parts of the basin. Guadalupe Mountains National Park (100131-10)
Download ImageCinder cones of Potrillo Volc field, New Mexico
Aerial view of cinder cones of Potrillo Volcanic Field in southern New Mexico. (100202-17)
Download ImageCross-Bedding in gypsum sand dunes, White Sands NM
Cross-Bedding surfaces in gypsum sand dunes, White Sands National Monument, New Mexico.
Download ImageCross-Bedding in gypsum sand dunes, White Sands NM
Cross-Bedding surfaces in gypsum sand dunes, White Sands National Monument, New Mexico. (100201-122)
Download ImageGypsum pedestal, White Sands, New Mexico.
Large gypsum pedestal and salt-tolerant mesquite shrubs, The pedestal is an erosional remnant: it consists of more consolidated sand that is more resistant to erosion than the surrounding poorly consolidated sand. White Sands National Monument, New Mexico. (100201-118)
Download ImageWind ripples and dunes, White Sands, New Mexico.
Wind ripples and dunes, White Sands National Monument, New Mexico. Note the asymmetry of the dunes, to indicate a prevailing wind from the left (west).(100201-93)
Download ImageSmall yardangs, White Sands National Monument, New Mexico
Small yardangs, formed by wind abrasion of older, more cohesive sediment. White Sands National Monument, New Mexico (100201-76)
Download ImageSlip face in dune, White Sands, New Mexico.
Slip face in white, gypsum dune, White Sands National Monument, New Mexico. (100201-50)
Download ImageCastner Marble, Franklin Mountains, Texas (vertical)
Proterozoic Castner Marble with garnet porphyroblasts, Franklin Mountains, Texas. (100201-39)
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