28,404 campgrounds
Pike National Forest
Ozark National Forest
Nezperce National Forest
Kaniksu National Forest
Wallowa National Forest
Willamette National Forest
San Bernardino National Forest
Wasatch National Forest
Bighorn National Forest
Challis National Forest
Mark Twain National Forest
Black Hills National Forest
Inyo National Forest
Bienville National Forest
Degray Lake — Shouse Ford
Sitgreaves National Forest
Tahoe National Forest
Lassen National Forest
Eldorado National Forest
Manistee National Forest
