Yellowstone: Top Photos

The caldera that powers half the world's geysers

A herd of bison walk along a river bank in snow. Bison along the Yellowstone River Keywords: yellowstone national park; bison; bison bison; wildlife; mammals
A herd of bison walk along a river bank in snow. Bison along the Yellowstone River Keywords: yellowstone national park; bison; bison bison; wildlife; mammals © NPS/Diane Renkin, Public domain, via Wikimedia Commons

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