28,525 campgrounds
Wallowa National Forest
Gunnison National Forest
San Isabel National Forest
Nezperce National Forest
Kaw Lake — Osage Cove
San Bernardino National Forest
Uncompahgre National Forest
Fremont National Forest
Bighorn National Forest
Ozark National Forest
Humboldt-Toiyabe National Forest
Inyo National Forest
Mt. Baker National Forest
Six Rivers National Forest
Willamette National Forest
Sequoia National Forest
Malheur National Forest
Helena National Forest
Custer National Forest
Tahoe National Forest
Deschutes National Forest
