28,760 campgrounds
Fremont National Forest
Tahoe National Forest
Sequoia National Forest
Challis National Forest
Uncompahgre National Forest
Pike National Forest
Okanogan National Forest
Inyo National Forest
Gallatin National Forest
Plumas National Forest
Ozark National Forest
Chattahoochee National Forest
Nezperce National Forest
Humboldt-Toiyabe National Forest
Wasatch National Forest
Bighorn National Forest
Medicine Bow National Forest
Flathead National Forest
Mt. Hood National Forest
Nicolet National Forest
