The area of Becharof Wilderness is 2,023.428 square kilometers.
Becharof Wilderness was created in 1980.
The area of Becharof National Wildlife Refuge is 4,856.228 square kilometers.
Becharof National Monument was created in 1978.
Becharof National Wildlife Refuge was created on 1980-12-02.
The area of Siffleur Wilderness Area is 412.14 square kilometers.
The area of Pepperbox Wilderness Area is 91.297 square kilometers.
Frank Church - River of no Return Wilderness Area.Gospel Hump Wilderness Area.Hells Canyon Wilderness Area.Sawtooth Wilderness Area.Selway-Bitterroot Wilderness Area.
The area of Shellback Wilderness is 146.266 square kilometers.
Siffleur Wilderness Area was created in 1961.
Wolkberg Wilderness Area was created in 1977.
The area of Lostwood Wilderness is 22.569 square kilometers.
The area of Bridger Wilderness is 1,732.738 square kilometers.