WY Yellowstone NP 920c Bison.jpg
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WY Yellowstone NP 920f Bison.jpg
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z P1070370 0158 Yellowstone bison live here.jpg
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z P1070417 0168 Yellowstone bison grazing.jpg
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The eye of the bison, Yellowstone National Park, Wyoming, 2008
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45) A herd of bison in Yellowstone Nat'l Park, Wyo.
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Closeup of a large bison in Yellowstone NP
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z P1070363 0089 Elder bison sheds winter fur in Yellowstone.jpg
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Wolf, Gray, Lamar Canyon Pack, Bison Carcass, snowing 021812 Picnic, Lamar Valley, Yellowstone NP #0761.jpg
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Wolf, Gray, Lamar Canyon Pack, Bison Carcass, snowing 021812 Picnic, Lamar Valley, Yellowstone NP #0799.jpg
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