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B. Powell: Lone Bison In Yellowstone National Park
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B. Powell: Lone Bison In Yellowstone National Park
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B. Powell: Female Elk, Yellowstone National Park
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B. Powell: Bison, Yellowstone National Park
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B. Powell: Bull Moose, Grand Teton National Park
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B. Powell: She Moose
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B. Powell: Bull Moose
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B. Powell: Grand Tetons, Mormon's Row
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B. Powell: Prairie Dog, Colorado
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B. Powell: Prairie Dog, Colorado
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B. Powell: Bison At Yellowstone
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B. Powell: Mule Deer
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B. Powell: Mule Deer
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B. Powell: Hamburger Highway