28,702 campgrounds
Mendocino National Forest
Gifford Pinchot National Forest
Stanislaus National Forest
Apache National Forest
Manti-La Sal National Forest
Jefferson National Forest
Custer Gallatin National Forest
Wenatchee National Forest
Willamette National Forest
Eldorado National Forest
Arapaho National Forest
Wallowa National Forest
Plumas National Forest
Tahoe National Forest
Custer National Forest
Wasatch National Forest
Inyo National Forest
Challis National Forest
Salmon National Forest
