28,701 campgrounds
Nantahala National Forest
Mt. Hood National Forest
Manistee National Forest
Wasatch National Forest
Inyo National Forest
Six Rivers National Forest
Eldorado National Forest
Ozark National Scenic Riverways
Huron National Forest
Willamette National Forest
Wenatchee National Forest
Los Padres National Forest
Mt. Baker National Forest
Angeles National Forest
Whitman National Forest
Shasta National Forest
Lincoln National Forest
Clearwater National Forest
San Bernardino National Forest
Arapaho National Forest
