29,559 campgrounds
St. Francis National Forest
Shasta-Trinity National Forest
Sequoia National Forest
Roosevelt National Forest
Wasatch National Forest
Challis National Forest
Lewis & Clark National Forest
Mt. Hood National Forest
Little Missouri National Grassland
Apache National Forest
Tahoe National Forest
Manistee National Forest
Coeur d'Alene National Forest
Rogue River National Forest
Okanogan National Forest
Wenatchee National Forest
San Bernardino National Forest
Gallatin National Forest
