29,559 campgrounds
Willamette National Forest
Whitman National Forest
Mt. Hood National Forest
Sequoia National Forest
Mendocino National Forest
Apache National Forest
Huron National Forest
Plumas National Forest
Tahoe National Forest
Gallatin National Forest
Jefferson National Forest
Olympic National Forest
Monongahela National Forest
Kaniksu National Forest
Pike National Forest
Sitgreaves National Forest
George Washington National Forest
Eldorado National Forest
