29,559 campgrounds
Sumter National Forest
Rio Grande National Forest
Deschutes National Forest
Nezperce National Forest
San Isabel National Forest
Cibola National Forest
Okanogan National Forest
Mt. Hood National Forest
Huron National Forest
Jefferson National Forest
Umatilla National Forest
Roosevelt National Forest
Wallowa National Forest
Gunnison National Forest
Siskiyou National Forest
San Bernardino National Forest
Uncompahgre National Forest
Kaniksu National Forest
Fremont National Forest
Bighorn National Forest
