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Frederick L. Mitchell Jr.: Grand Prismatic Spring... Midway Geyser Basin, Yellowstone National Park
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Frederick L. Mitchell Jr.: Coyoye... Hayden Valley, Yellowstone N. P.
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Frederick L. Mitchell Jr.: Mountain Goats, Nannie and Kid, Mount Evans, Colorado
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Frederick L. Mitchell Jr.: Violet-crowned Hummingbird... Patagonia, Arizona.