28,554 campgrounds
Chattahoochee National Forest
Medicine Bow National Forest
Bighorn National Forest
Deschutes National Forest
Nezperce National Forest
Apache National Forest
Wenatchee National Forest
George Washington National Forest
Coeur d'Alene National Forest
Ozark National Forest
Cache National Forest
Tahoe National Forest
Sitgreaves National Forest
Eldorado National Forest
Shoshone National Forest
Plumas National Forest
Kootenai National Forest
Gallatin National Forest
