28,596 campgrounds
Custer State Park
George Washington National Forest
Shasta-Trinity National Forest
Jefferson National Forest
Siskiyou National Forest
Eldorado National Forest
Trinity National Forest
Kisatchie National Forest
Caribou National Forest
Wasatch National Forest
Sumter National Forest
Gallatin National Forest
Plumas National Forest
Shoshone National Forest
Challis National Forest
Willamette National Forest
Cache National Forest
Uncompahgre National Forest
Mt. Hood National Forest
St. Joe National Forest
Colville National Forest
