The area of Washington Islands Wilderness is 1,829,179.1029248 square meters.
Washington Islands Wilderness was created in 1970.
The area of Allegheny Islands Wilderness is 1,489,243.1634432 square meters.
The area of Hazy Islands Wilderness is 129,499.4055168 square meters.
The area of Bering Sea Wilderness is 329.171 square kilometers.
The area of Mount Washington Wilderness is 212.525 square kilometers.
Aleutian Islands Wilderness was created in 1980.
Allegheny Islands Wilderness was created in 1984.
Hazy Islands Wilderness was created in 1970.
Mount Washington Wilderness was created in 1964.
The area of Pepperbox Wilderness Area is 91.297 square kilometers.
The area of Siffleur Wilderness Area is 412.14 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.