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Yellowstone National Park A coyote howling in a snow-covered landscape.
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Yellowstone National Park
Duck Fire Report
 
Duck Fire Cover Sheet

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Upper Geyser Basin Hydrothermal Features on a Winter Day.

Did You Know?
Yellowstone contains approximately one-half of the world’s hydrothermal features. There are over 10,000 hydrothermal features, including over 300 geysers, in the park.

Last Updated: June 19, 2007 at 10:19 MST