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Devils Postpile National Monument in the summer, in the Eastern Sierra Nevada of California
Basalt formations at Devil's Postpile National Monument near Mammoth Mountain in California.
Devils Postpile (aka Devil's Postpile) National Monument is named after a cliff of columnar basalt. Radiometric dating indicates the formation was created by a lava flow at some time less than 100,000 years ago
Panorama of  the Devils Postpile near Mammoth, California
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The unusual rock formation of columnar basalt at Devils Postpile National Monument, California
Devil's tower national monument in northeast Wyoming with copyspace and Bales of hay align in fields pointing way to Devil's Tower in Wyoming - site of Close Encounters of the Third Kind.
Hiker reaching summit very far away standing on top of the mountain in Yosemite National Park landscape scenery, the Pothole Dome, California, USA. Man hiking funny showing strong success pose.
Basalt formations at Devil's Postpile National Monument near Mammoth Mountain in California.
Crystalline volcanic formations in Devils Postpile National Monument - July 2010
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Exposed lava tubes which make up the infamous Devil's Postpile
Woman Hiking in Yosemite National Park
top of devil's postpile
The Sheepeater Cliffs are a series of exposed cliffs made up of columnar basalt in Yellowstone National Park in the United States. The lava was deposited about 500,000 years ago during one of the periodic basaltic floods in Yellowstone Caldera, and later exposed by the Gardner River. Yellowstone National Park, Wyoming.
Devils postpile national monument national reserve in mammoth lakes California
Top of Basalt formations at Devil's Postpile National Monument near Mammoth Mountain in California.
Rainbow Falls in Devils Postpile National Monument, Ansel Adams Wilderness, Inyo National Forest, California
Top of Devil's Postpile showing hexagon shaped columnar basalt, polished by glacial action.
Columns at Devil's postpile national monument
Devils Postpile National Monument, Mammoth Lakes, California, USA. View from below on the 60 feet high basalt columns of Devils Postpile against a clear blue sky. On the fore ground fragments of fallen colums on the slope below.
A stunning close-up of the unique basalt column formations in Stuðlagil Canyon, Iceland. The naturally formed hexagonal rock structures display dramatic curvature, created by the cooling and contraction of lava over thousands of years. The intricate geological patterns, combined with subtle moss growth and weathered textures, highlight the breathtaking natural artistry of Iceland’s volcanic landscape.
Tower-Roosevelt Region has Tower Falls, Yellowstone River, geologic mountains capes and valleys. Calcite Springs is geothermal altered rhyolite and steep, columnar basalt cliffs on the opposite side of the river.
Porkchop Geyser's name derives from its pork chop-shaped sinter mound. Measuring around 2 feet in diameter, the geyser was once a tranquil hot spring until 1971 when it began erupting intermittently. In 1989, it experienced a violent hydrothermal explosion, scattering debris over 200 feet away and significantly altering its appearance. In that year, a visitor named David Kirwan died after attempting to rescue his friend's dog from the hot spring.
Basalt formations at Devil's Postpile National Monument near Mammoth Mountain in California.
Devils Posts Pile in Mammoth, ca
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Devils Postpile National Monument in the morning light
Devil's Postpile National Monument (Mammoth Lakes, California).
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