28,598 campgrounds
Little Missouri National Grassland
Bridger-Teton National Forest
Snoqualmie National Forest
Wenatchee National Forest
Modoc National Forest
Tahoe National Forest
Willamette National Forest
Manistee National Forest
Sumter National Forest
Pike National Forest
Ozark National Forest
Nezperce National Forest
Kaniksu National Forest
Wallowa National Forest
San Bernardino National Forest
Wasatch National Forest
Mt. Baker National Forest
Bighorn National Forest
Challis National Forest
Mark Twain National Forest
George Washington National Forest
