Yellowstone National Park, primarily in Wyoming with small portions in Idaho and Montana, was established as a national park in 1872. The largest park in the lower 48 states, it contains over half the world’s geothermal features including geysers, hot springs, fumaroles, and mudpots. The most famous of Yellowstone’s over 300 geysers is Old Faithful, which erupts on average every 91 minutes.
Also within the national park are several mountain ranges, the largest high-altitude lake in North America, approximately 290 waterfalls, and one of the world’s largest petrified forests. The park is home to a great variety of wildlife including bison, grizzly bears, moose, elk, gray wolves, bighorn sheep, and bald eagles.
Yellowstone offers more than 950 miles of backcountry and mountain trails, 12 campgrounds, 9 hotels and lodges, and 9 different visitor centers and museums.
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