28,702 campgrounds
Coeur d'Alene National Forest
Sequoia National Forest
Eldorado National Forest
Willamette National Forest
Ashley National Forest
San Bernardino National Forest
Tahoe National Forest
Superior 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
