28,290 campgrounds
Chattahoochee National Forest
Snoqualmie National Forest
Helena National Forest
Fremont National Forest
Medicine Bow National Forest
Challis National Forest
Little Missouri National Grassland
Lewis & Clark National Forest
Rogue River National Forest
Stanislaus National Forest
San Isabel National Forest
Toiyabe National Forest
Bighorn National Forest
Uinta-Wasatch-Cache National Forest
Plumas National Forest
Gallatin National Forest
Sierra National Forest
Umpqua National Forest
San Bernardino National Forest
Gunnison National Forest
Jefferson National Forest
Mendocino National Forest
