29,827 campgrounds
Willamette National Forest
Ashley National Forest
San Bernardino National Forest
Tahoe National Forest
Superior National Forest
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
Lyndon B. Johnson National Grassland
Apache National Forest
Black Kettle National Grassland
