29,559 campgrounds
Gunnison National Forest
Lassen National Forest
Tongass National Forest
El Yunque National Forest
Fremont National Forest
Routt National Forest
Bridger-Teton National Forest
Snoqualmie National Forest
Los Padres National Forest
San Isabel National Forest
Sequoia National Forest
Nezperce National Forest
Pike National Forest
Plumas National Forest
Mendocino National Forest
Tahoe National Forest
Wenatchee National Forest
Sheyenne National Grassland
