30,104 campgrounds
Eldorado National Forest
Shasta-Trinity National Forest
Targhee National Forest
Bighorn National Forest
Beaverhead National Forest
Chequamegon National Forest
Humboldt National Forest
Whitman National Forest
Santa Fe National Forest
Willamette National Forest
Lyndon B. Johnson National Grassland
Apache National Forest
Black Kettle National Grassland
Chattahoochee National Forest
Siuslaw National Forest
Wallowa National Forest
Custer National Forest
Manistee National Forest
