Search for any geological feature below
–then click on the image to see a larger version in its correct format, a more detailed caption, and an ID number.
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SOME POINTERS:
Photos typically include their locations, so you can use locations as keywords too. You get more hits with shorter words, and fewer hits as you become increasingly specific with increasing numbers of keywords. It’s best to use singular rather than plural (eg “volcano” instead of “volcanoes”).
As some words are included in others (“salt” within “basalt,” for example) you might want to be more specific to avoid getting a bunch of irrelevant photos.
Or you can just scroll down and see the most recently added photos… Enjoy!
Cracked sidewalk (vertical)
Cracked sidewalk, from ongoing weathering and erosion. (IP17-3502)
Download ImageGlacial arete, Montana (Pan)
The Garden Wall, a glacial arete in Glacier National Park, Montana. Bedrock is sedimentary rock of the Proterozoic Belt Supergroup. (IP17-3465)
Download ImageWestern Cascades, Oregon (Pan)
Eroded andesite of the Western Cascades, Oregon –looking eastward towards stratovolcanoes of the High Cascades. (IP17-3331)
Download ImageShoshone Falls, Idaho (Pan)
Rhyolite of the Twin Falls volcanic field -a 10 Ma caldera of the Yellowstone Hot Spot– exposed at Shoshone Falls, Idaho. Basalt of the Snake River Plain forms the cliffs on the skyline, (IP17-3081)
Download ImageMultnomah Falls, Oregon (vertical pan)
Multnomah Falls, Oregon drops more than 600 feet over basalt flows of the Grande Ronde Basalt (IP17-3049)
Download ImageFront Range of Northern Colorado
Aerial view of Front Range of northern Colorado, including much of Rocky Mountain National Park. Longs Peak is the prominent peak near the upper center of the photo. (IP17-2793)
Download ImageHogback ridges, Colorado (Vertical)
Aerial view of hogback ridges along edge of Colorado’s Front Range near Boulder, Colorado. Great Unconformity, between Pennsylvanian Fountain Formation and Precambrian basement appears at base of Flatiron in lower part of photo. (IP17-2790)
Download ImageHogback ridges, Colorado
Aerial view of hogback ridges along edge of Colorado’s Front Range near Boulder, Colorado. Great Unconformity, between Pennsylvanian Fountain Formation and Precambrian basement appears at base of Flatiron in lower part of photo. (IP17-2789)
Download ImageLakes show groundwater table, Colorado
Aerial view of lakes showing groundwater table near Denver, Colorado (IP172786)
Download ImageMississippi River Delta, Louisiana
Aerial view of mouth of Mississippi River Delta, Louisiana (IP17-2750)
Download ImageMississippi River Delta, Louisiana
Aerial view of mouth of Mississippi River Delta, Louisiana (IP17-2749)
Download ImageCross-bedded sandstone (vertical)
Cross-bedded, coarse-grained sandstone, right-side up. (IP17-2535)
Download ImageSheath fold in gneiss (vertical)
Sheath fold in gneiss, about .5 m across (IP17-2533)
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Tilted Columbia River Basalt, Washington (Pan)
Angular unconformity between tilted Miocene Grande Ronde Basalt and flat-lying Quaternary Underwood Basalt (high on left), Washington. (IP16-1662)
Download ImageHogback fins, Colorado
Erosional remnants of vertically dipping sandstone of the Permian Lyons Formation in Garden of the Gods, Colorado. The erosion produced narrow hogback fins. (IP16-1593)
Download ImageCross-bedded arkosic sandstone (vertical)
Cross-bedded, coarse-grained arkosic sandstone of the Pennsylvanian Fountain Formation, Colorado. Rocks get younger towards the left. Photo is about 1 meter across. (IP16-1582)
Download ImageCross-bedded arkosic sandstone
Cross-bedded, coarse-grained arkosic sandstone of the Pennsylvanian Fountain Formation, Colorado (IP16-1581)
Download ImageEffects of soil creep, Oregon (vertical)
tilted retaining wall from soil creep, Oregon (IP17-4154)
Download ImageSlackwater deposits, Washington
Slackwater sediments, deposited in temporary lakes formed during the Ice Age (Missoula) floods, Washington. (IP16-3816)
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