Spring Basin Wilderness was created in 2009.
The area of Spring Basin Wilderness is 25.827 square kilometers.
Beaver Basin Wilderness was created in 2009.
The area of Beaver Basin Wilderness is 47.51 square kilometers.
Shellback Wilderness was created in 2006.
Wilderness School was created in 1884.
Lostwood Wilderness was created in 1975.
Bridger Wilderness was created in 1964.
Tracks from the Wilderness was created in 1992.
Mountain Wilderness was created in 1987.
Gila Wilderness was created in 1924.
Buckhorn Wilderness was created in 1984.
Wilderness Fund was created in 1989.