Snake River Plain
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The Snake River Plain is a geologic feature located primarily within the U.S. state of Idaho. It stretches about 400 miles westward from northwest of the state of Wyoming to the Idaho-Oregon border. T
The Snake River cutting through the plain leaves many canyons and gorges, such as this one near Twin Falls, Idaho
The eastern Snake River Plain, image from NASA's Aqua satellite, 2008
Moisture Channel
Natural vegetation on the Snake River Plain near Twin Falls
Mesa Falls Tuff
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The Mesa Falls Tuff is a tuff formation produced by the Mesa Falls eruption that formed the Henry's Fork Caldera that is located in Idaho west of Yellowstone National Park. It is the second most recen
Mesa Falls Tuff exposed at southern rim of both the Island Park Caldera and the Henry's Fork Caldera near Ashton, Idaho.
Extent of the Mesa Falls ash bed