26,498 campgrounds
San Isabel National Forest
Toiyabe National Forest
Uinta-Wasatch-Cache National Forest
Sierra National Forest
Jefferson National Forest
Mendocino National Forest
Trinity National Forest
Delta National Forest
Chattahoochee National Forest
Ozark National Forest
Umpqua National Forest
San Bernardino National Forest
Wasatch National Forest
Lassen National Forest
Wenatchee National Forest
Deerlodge National Forest
Flathead National Forest
George Washington National Forest
Fremont National Forest
Siuslaw National Forest
Chequamegon National Forest
Ashley National Forest
