28,784 campgrounds
Pike National Forest
Sequoia National Forest
Ozark National Forest
San Bernardino National Forest
Nezperce National Forest
Kaniksu National Forest
Willamette National Forest
Wallowa National Forest
Wasatch National Forest
Mt. Baker National Forest
Deschutes National Forest
Bighorn National Forest
Challis National Forest
Deerlodge National Forest
Mark Twain National Forest
George Washington National Forest
Custer National Forest
Black Hills National Forest
Inyo National Forest
Tahoe National Forest
Bienville National Forest
