• A bull elk bugles in Yellowstone National Park


    National Park ID,MT,WY

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  • Craig Pass Closed for the Season; Mammoth to Norris Closed Sept. 14-30

    The road linking West Thumb and Old Faithful is closed for the season—traffic should detour through West Thumb, Lake, and Canyon. The road from Mammoth to Norris is closed for two weeks—traffic should detour over Dunraven Pass. 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?

Fire in Yellowstone Pineland in 1988

The 1988 fires affected 793,880 acres or 36 percent of the park. Five fires burned into the park that year from adjacent public lands. The largest, the North Fork Fire, started from a discarded cigarette. It burned more than 410,000 acres.