29,559 campgrounds
Huron National Forest
San Bernardino National Forest
Wasatch National Forest
Targhee National Forest
Ozark National Forest
Los Padres National Forest
Gallatin National Forest
Deerlodge National Forest
Salmon National Forest
Roosevelt National Forest
Tahoe National Forest
Caribou-Targhee National Forest
Apache National Forest
Jefferson National Forest
Lewis & Clark National Forest
Fremont National Forest
Eldorado National Forest
St. Joe National Forest
Shasta National Forest
Black Hills National Forest
Bighorn National Forest
Sequoia National Forest
Umpqua National Forest
