29,559 campgrounds
Shasta-Trinity National Forest
Pike National Forest
Siuslaw National Forest
Sierra National Forest
Ashley National Forest
Lewis & Clark National Forest
Jefferson National Forest
Wenatchee National Forest
Bridger National Forest
Mendocino National Forest
Inyo National Forest
Snoqualmie National Forest
Clearwater National Forest
Cibola National Forest
Gunnison National Forest
Los Padres National Forest
San Isabel National Forest
White River National Forest
Chattahoochee National Forest
Uinta National Forest
Stanislaus National Forest
