29,559 campgrounds
Deschutes National Forest
Clearwater National Forest
Winema National Forest
George Washington National Forest
Inyo National Forest
Willamette National Forest
Sierra National Forest
San Isabel National Forest
Sumter National Forest
Pike National Forest
Arapaho National Forest
Black Hills National Forest
San Bernardino National Forest
Chattahoochee National Forest
Shasta-Trinity National Forest
Challis National Forest
Sitgreaves National Forest
Hiawatha National Forest
Apache National Forest
Gila National Forest
Wenatchee National Forest
Snoqualmie National Forest
Bridger-Teton National Forest
