• Visitors enjoy an eruption of Old Faithful from the Inn.

    Yellowstone

    National Park ID,MT,WY

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  • Fire Danger Level is EXTREME

    While campfires and charcoal grills are permitted, visitors are encouraged to be careful with fire.

  • Road Information

    Updated road information is available 24 hours a day by calling 307-344-2117. See Road Construction Delays and Closures for more information. More »

World's Largest Collection of Geysers

It's wonderland. Old Faithful and the majority of the world's geysers are preserved here. They are the main reason the park was established in 1872 as America's first national park—an idea that spread worldwide. A mountain wildland, home to grizzly bears, wolves, and herds of bison and elk, the park is the core of one of the last, nearly intact, natural ecosystems in the Earth’s temperate zone.

Did You Know?

Seventh Cavalry Ensignia Pin.

Prior to the establishment of the National Park Service, the U.S. Army protected Yellowstone between 1886 and 1918. Fort Yellowstone was established at Mammoth Hot Springs for that purpose.