28,356 campgrounds
Cimarron National Grassland
Sierra National Forest
Wenatchee National Forest
Coconino National Forest
Uinta National Forest
Uinta-Wasatch-Cache National Forest
Mark Twain National Forest
Humboldt-Toiyabe National Forest
White River National Forest
Kaniksu National Forest
Mt. Baker National Forest
Shasta-Trinity National Forest
Lassen National Forest
George Washington National Forest
Deschutes National Forest
Willamette National Forest
San Juan National Forest
Bridger-Teton National Forest
Stanislaus National Forest
Lake Tahoe Basin Management Unit
Mt. Hood National Forest
