Yellowstone: Top Photos

The caldera that powers half the world's geysers

Pronghorn (Antilocapra americana) in Lamar Valley, Yellowstone National Park, USA
Pronghorn (Antilocapra americana) in Lamar Valley, Yellowstone National Park, USA © Thomas Wolf, www.foto-tw.de, CC BY-SA 3.0, via Wikimedia Commons

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