28,678 campgrounds
Mendocino National Forest
Shasta-Trinity National Forest
Custer Gallatin National Forest
Toiyabe National Forest
Sitgreaves National Forest
Tonto National Forest
Francis Marion National Forest
Chattahoochee National Forest
Los Padres National Forest
Fremont National Forest
Wallowa-Whitman National Forest
Boise National Forest
Buffalo Gap National Grassland
Sequoia National Forest
Mt. Hood National Forest
Apache National Forest
Plumas National Forest
Jefferson National Forest
Olympic National Forest
