The area of Allegheny National Recreation Area is 81.552 square kilometers.
Allegheny National Recreation Area was created in 1984.
The area of Arapaho National Recreation Area is 124.198 square kilometers.
The area of Chickasaw National Recreation Area is 40.019 square kilometers.
The area of Rattlesnake National Recreation Area is 113.312 square kilometers.
The area of Sawtooth National Recreation Area is 3,148.454 square kilometers.
The area of Curecanti National Recreation Area is 169.855 square kilometers.
The area of Jemez National Recreation Area is 233.301 square kilometers.
The area of Moosalamoo National Recreation Area is 64.244 square kilometers.
The area of Hells Canyon National Recreation Area is 2,640.525 square kilometers.
The area of Ross Lake National Recreation Area is 475.805 square kilometers.
The area of Pine Ridge National Recreation Area is 26.709 square kilometers.
The area of Lake Roosevelt National Recreation Area is 406.264 square kilometers.