28,712 campgrounds
Wasatch National Forest
Bighorn National Forest
Medicine Bow National Forest
Chattahoochee National Forest
Mt. Hood National Forest
Nicolet National Forest
Snoqualmie National Forest
Okanogan National Forest
Pike National Forest
Willamette National Forest
Wallowa-Whitman National Forest
George Washington National Forest
Sierra National Forest
Deschutes National Forest
Malheur National Forest
Tahoe National Forest
Cache National Forest
Challis National Forest
Humboldt-Toiyabe National Forest
