28,598 campgrounds
St. Francis National Forest
Chattahoochee National Forest
Ozark National Forest
Coeur d'Alene National Forest
Willamette National Forest
San Isabel National Forest
Cache National Forest
George Washington National Forest
Caribou National Forest
Huron National Forest
Lewis & Clark National Forest
Gallatin National Forest
Chequamegon National Forest
Grand Mesa National Forest
Wasatch National Forest
Challis National Forest
Gunnison National Forest
Sawtooth National Forest
Mt. Hood National Forest
Sequoia National Forest
Angeles National Forest
