29,559 campgrounds
Siskiyou National Forest
Stanislaus National Forest
Ozark National Forest
Beaverhead National Forest
Willamette National Forest
Apache National Forest
Medicine Bow National Forest
Los Padres National Forest
Apalachicola National Forest
Ashley National Forest
Kaniksu National Forest
Roosevelt National Forest
Sequoia National Forest
Whitman National Forest
Francis Marion National Forest
Okanogan National Forest
Mt. Hood National Forest
Sierra National Forest
George Washington National Forest
