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Park visitors walk through the sunset-colored steam cloud of the Excelsior Geyser Crater in Yellowstone National Park, Monday, May 30, 2005. (Kevin Moloney for the New York Times)
Park visitors walk through the sunset-colored steam cloud of the Excelsior Geyser Crater in Yellowstone National Park, Monday, May 30, 2005. (Kevin Moloney for the New York Times)
Filename: Yellowstone_12.jpg
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