28,760 campgrounds
Lewis & Clark National Forest
Jefferson National Forest
Bridger National Forest
Sierra National Forest
Mendocino National Forest
Snoqualmie National Forest
Cibola National Forest
Gunnison National Forest
Chattahoochee National Forest
Uinta National Forest
Sitgreaves National Forest
Okanogan National Forest
Deschutes National Forest
Angeles National Forest
Siskiyou National Forest
Huron National Forest
Los Padres National Forest
Eldorado National Forest
Wasatch National Forest
Sawtooth National Forest
Chequamegon National Forest
Gallatin National Forest
