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ap0013: Yellowstone NP, Wyoming
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ap0013: Twilight in Yellowstone
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ap0013: Yellowstone Lake - Yellowstone NP, Wyoming
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ap0013: Lewis Falls - Yellowstone NP, Wyoming
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ap0013: Lewis Falls - Yellowstone NP, Wyoming
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ap0013: Roadside Grazing
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ap0013: Yellowstone NP, Wyoming
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ap0013: West Thumb Geyser Basin - Yellowstone NP, Wyoming
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ap0013: Yellowstone NP, Wyoming
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ap0013: Mammoth Hot Springs - Yellowstone NP, Wyoming
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ap0013: Yellowstone NP, Wyoming
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ap0013: Do not approach the elk!
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ap0013: West Thumb Geyser Basin - Yellowstone NP, Wyoming
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ap0013: Mammoth Hot Springs - Yellowstone NP, Wyoming
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ap0013: Yellowstone NP, Wyoming
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ap0013: Bison Crossing - Yellowstone NP, Wyoming
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ap0013: West Thumb Geyser Basin - Yellowstone NP, Wyoming
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ap0013: Mammoth Hot Springs - Yellowstone NP, Wyoming
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ap0013: Mammoth Hot Springs - Yellowstone NP, Wyoming
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ap0013: Mud Volcano - Yellowstone NP, Wyoming
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ap0013: Mud Volcano Area - Yellowstone NP, Wyoming
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ap0013: Mud Volcano Area - Yellowstone NP, Wyoming
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ap0013: West Thumb Geyser Basin - Yellowstone NP, Wyoming
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ap0013: Mud Volcano Area - Yellowstone NP, Wyoming
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ap0013: Bison crossing the Yellowstone River - Yellowstone NP, Wyoming
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ap0013: Yellowstone NP, Wyoming
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ap0013: Yellowstone NP, Wyoming
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ap0013: Old Faithful
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ap0013: Mammoth Hot Springs - Yellowstone NP, Wyoming
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ap0013: Yellowstone NP, Wyoming