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                                               Yellowstone is the only place in the United States where bison have lived continuously since prehistoric times. Bison live year-round in the Hayden Valley. Winters are often severe, with deep snows and temperatures reaching -44 degrees F (-42 degrees C). Bison from the central herd congregate in the Hayden Valley for breeding. As of July 2015, the Hayden Valley subpopulation consisted of 1,300 bison. Wolves and grizzly bears are the only large predators of adult bison. Dead bison provide an important source of food for scavengers and other carnivores.
                                                                                    
                                                                                    At Madison Junction, you'll find a campground, restroom facilities, an information...
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                                                                                    Exploring Mammoth'swhite travertine terraes is a bit like stepping out...
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                                                                                    Located at the boundary between Yellowstone National Park and the...
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                                                                                    Roaring Mountain is a large, acidic thermal area (solfatara) that...
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                                                                                    The Grand Canyon of the Yellowstone River expresses the park's...
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                                                                                    Don't pass by Yellowtone's oldest and hottest geothermal basin! Norris...
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                                                                                    Along Fountain Paint Pot Trail you will see various hydrothermal...
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