Absaroka-Beartooth Wilderness, Protected wilderness area in southern Montana, United States

The Absaroka-Beartooth Wilderness is a protected area featuring alpine lakes, granite peaks, dense forests, and wide plateaus across southern Montana. The landscape combines steep mountainsides with remote water bodies and open ridgelines that stretch across hundreds of thousands of acres.

Congress designated the Absaroka–Beartooth Wilderness in 1978, originally 904,500 acres drawn from the Custer and Gallatin National Forests of Montana. The Lee Metcalf Wilderness and Management Act added land in 1983, and the Wyoming Wilderness Act of 1984 brought in acreage from Shoshone National Forest, raising the total to 937,102 acres.

The name Absaroka comes from the Crow word Apsáalooke, meaning "children of the large-beaked bird," while Beartooth refers to the range's jagged granite crests. The wilderness lies within the Greater Yellowstone Ecosystem and borders Yellowstone National Park, and its forests of spruce, fir and pine shelter grizzly bears, lynx, wolves and Yellowstone cutthroat trout.

Visitors need permits for camping and fishing throughout the area, with all motorized vehicles banned year-round. The terrain demands solid fitness and preparation, as trails can be steep and weather changes quickly at high elevations.

The area contains Granite Peak, Montana's highest mountain, alongside more than 100 summits rising above 10,000 feet. This concentration of tall peaks makes it a rare destination for serious climbers and mountain explorers.