Regular basalt layer in canyon wall provides evidence of the volcanic nature of Yellowstone National Park. WY.

Regular basalt layer in canyon wall provides evidence of the volcanic nature of Yellowstone National Park. WY.
Photo by Jim Steinhart © 2011, all rights reserved. (Ref: WYYE583)

Click an index below to see this photo among related images:

Yellowstone River Grand Canyon, Yellowstone National Park
Yellowstone National Park
Captions List for Wyoming

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