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Photographs of the Pitchstone Flow, Yellowstone National Park
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Pitchstone flow N of Bechler Meadows.
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Aerial view toward the south of thick intracaldera rhyolite lava flows of the forested Madison and Pitchstone Plateaus, burying the west rim of the Yellowstone caldera. The plateaus preserve the characteristic form of these thick flows, emplaced as highly viscous lavas with steep scarp-like lobate margins. The Teton Range rises beyond the caldera. on the distant skyline. Photograph by Robert L. Christiansen on 17 July 1977.
Pitchstone flow at Bechler Meadows.
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Aerial view of several large young rhyolite lava flows erupted within the Yellowstone caldera. This view is toward the NNE from above Bechler Creek; the Gallatin and Absaroka Ranges are visible in the far distance. Photograph by Bob Smith, University of Utah, 1992.


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Last Modification: Thursday, March 17, 2005 (dyv)
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