Yellowstone: Top Photos

The caldera that powers half the world's geysers

A close up of a bison face with other bison in the background. Bison, Norris Geyser Basin Keywords: yellowstone national park; mammals; wildlife; bison; bison bison; 20151124_ndh-yell-9322
A close up of a bison face with other bison in the background. Bison, Norris Geyser Basin Keywords: yellowstone national park; mammals; wildlife; bison; bison bison; 20151124_ndh-yell-9322 © Neal Herbert, Public domain, via Wikimedia Commons

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