• A bull elk bugles in Yellowstone National Park


    National Park ID,MT,WY

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  • Construction Work To Result In Yellowstone Road Closures After Labor Day

    Two sections of Yellowstone’s Grand Loop Road will be closed due to construction after the Labor Day holiday weekend. Travel between some points will involve long detours and significantly longer than normal travel times. More »


Hymen Terrace, Mammoth Hot Springs, with Fort Yellowstone in the background.
Hymen Terrace, Mammoth Hot Springs, in the foreground with historic Fort Yellowstone in the background.
Detroit Photographic Co circa 1902
Early after Yellowstone Park was established, the U.S. military assisted in protecting and administering the park. Visit these pages to learn more about historic Fort Yellowstone, and the historic back-country cabins they constructed.

Did You Know?

Upper Geyser Basin Hydrothermal Features on a Winter Day.

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.