29,559 campgrounds
Roosevelt National Forest
Uinta National Forest
Six Rivers National Forest
Angeles National Forest
Whitman National Forest
Caribou National Forest
Shasta-Trinity National Forest
Mendocino National Forest
Cache National Forest
Chequamegon National Forest
Manistee National Forest
Deschutes National Forest
Wenatchee National Forest
Challis National Forest
Deerlodge National Forest
Jefferson National Forest
Tonto National Forest
Comanche National Grassland
Arapaho National Forest
