29,559 campgrounds
Siskiyou National Forest
Tahoe National Forest
Humboldt-Toiyabe National Forest
Cherokee National Forest
Bighorn National Forest
Pike National Forest
Inyo National Forest
Custer Gallatin National Forest
Caribou-Targhee National Forest
Dixie National Forest
Kaniksu National Forest
Mt. Baker National Forest
Chattahoochee National Forest
Six Rivers National Forest
Shasta-Trinity National Forest
Willamette National Forest
Sequoia National Forest
Eldorado National Forest
Cache National Forest
Malheur National Forest
Helena National Forest
