Bison along the Yellowstone River
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Bison in a Yellowstone Parking Lot Rubbing Off Its Winter Coat on a Tree Trunk
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Bison and the Yellowstone River in the Hayden Valley in Yellowstone National Park
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Bison Crossing the Yellowstone.jpg
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Bison Crossing the Yellowstone River.jpg
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Bison at Firehole River, Yellowstone
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Bison near Madison River, Yellowstone (DSCN8222.JPG)
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Bison in the Mist : Yellowstone
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Bison crossing, Lamar Valley, Yellowstone National Park, Wyoming, 2006
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Bison 021807 Round Prairie, Yellowstone Natl Park 0184.jpg
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