29,559 campgrounds
Clearwater National Forest
Ashley National Forest
Siskiyou National Forest
Superior National Forest
Okanogan National Forest
Gallatin National Forest
Los Padres National Forest
Chequamegon National Forest
Chattahoochee National Forest
Roosevelt National Forest
Bridger-Teton National Forest
Medicine Bow National Forest
Wenatchee National Forest
Nebraska National Forest
Francis Marion National Forest
Dixie National Forest
Kaniksu National Forest
Mendocino National Forest
Gunnison National Forest
Tonto National Forest
Sierra National Forest
