29,559 campgrounds
Caddo National Grassland
Eldorado National Forest
Chequamegon National Forest
Deschutes National Forest
Bighorn National Forest
Pike National Forest
Umatilla National Forest
Sumter National Forest
Manistee National Forest
Challis National Forest
Bridger-Teton National Forest
Rogue River National Forest
Snoqualmie National Forest
Tahoe National Forest
Umpqua National Forest
White Mountain National Forest
Los Padres National Forest
Ozark National Forest
Clearwater National Forest
San Isabel National Forest
Superior National Forest
