29,559 campgrounds
Siskiyou National Forest
Stanislaus National Forest
Apache National Forest
Nicolet National Forest
Kaniksu National Forest
Umpqua National Forest
Beaverhead National Forest
George Washington National Forest
Prescott National Forest
Routt National Forest
Huron National Forest
Six Rivers National Forest
Gallatin National Forest
Tahoe National Forest
Coeur d'Alene National Forest
Malheur National Forest
Little Missouri National Grassland
Toiyabe National Forest
Caribou National Forest
Nezperce National Forest
Deschutes National Forest
