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Yellowstone National ParkFishing Bridge over Yellowstone River
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Yellowstone National Park
Aggressive Black Bear Captured and Removed from Canyon Area

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Date: June 18, 2006
Contact: Nash, (307) 344-2010
Contact: Vallie, (307) 344-2012

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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.

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Last Updated: March 26, 2007 at 20:21 EST