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Stratovolcanoes and lava flow, Oregon
North and Middle Sister stratovolcanoes and Lava Flow, Oregon (110730-124)
Download ImageCascade Volcanoes, Oregon (Pan)
View from Collier Cone. From left (south) to right, the volcanoes are Belknap Shield Volcano, Mount Washington, Three-Fingered Jack, Mount Jefferson (large snowy one), Mt. Hood. (110730-54)
Download ImageGranitic bedrock and glacial cirque, Colorado.
Upper reaches of Glacier Gorge, a U-shaped valley in Rocky Mountain National Park. Longs Peak forms the high peak in the center. (110716-26)
Download ImageGlacial cirque, Colorado
Upper reaches of Glacier Gorge, a U-shaped valley and cirque in Rocky Mountain National Park. From left to right, the peaks on the skyline are Longs Peak, Pagoda Mtn., and Chiefs Head. Spearhead forms the end of the arete coming off Chiefs Head. (110716-39)
Download ImageLongs Peak, Colorado (vertical)
Longs Peak forms the side of Glacier Gorge, a U-shaped valley in Rocky Mountain National Park, Colorado. The dark stripe is a large inclusion of metamorphic rock in the Proterozoic granitic rock. (110716-72)
Download ImageGlacial arete, Colorado
Glacial aretes are the narrow ridges that separate glacial cirques. This one is formed of Proterozoic granitic rock in Rocky Mountain National Park, Colorado. (110716-58)
Download ImageFull moon over moraine, Colorado
Full moon over high forested moraine, Rocky Mountain National Park, Colorado. (110716-6)
Download ImageMoon over Front Fange, Colorado
Full moon over the Front Range of Rocky Mountain National Park, Colorado. Each peak is separated by a U-shaped, glacial valley. (110716-2).
Download ImageGlacial arete, Colorado
The Spearhead is a peak at the end of a glacial arete that ends in a headwall in Rocky Mountain National Park, Colorado.
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Glacial erosional features, Colorado
Glacial headwall, cirque, and U-shaped Valley on Longs Peak, in Rocky Mountain National Park, Colorado. A lateral moraine (Mills Moraine) follows the right side of the valley. Mt. Meeker on the left and Mt. Lady Washington are on the right. Longs Peak consists primarily of Proterozoic granitic rock. (110715-45)
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granitic cliffs, Colorado
Glacially eroded cliffs of Proterozoic granitic rock on Longs Peak, Rocky Mountain National Park, Colorado (110715-26)
Download ImageTree growing from crack, Colorado
Tree growing from crack in granitic rock and Roche Moutonee, Rocky Mountain National Park, Colorado. 110716-110
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Angular unconformity, Colorado.
Angular unconformity between tilted Permian rock and gently inclined Miocene basalt, Colorado(110714-4)
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Glacial headwall, Longs Peak, Colorado.
The 2000′ vertical face of Longs Peak (“The diamond”) is a glacial headwall made of Proterozoic granitic rock. (110715-51)
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