41,376 campgrounds
Yosemite National Park
Isle Royale National Park
Kings Canyon National Park
Great Basin National Park
Canyonlands National Park
White Sands National Park
Mount Rainier National Park
Bryce Canyon National Park
Zion National Park
Great Smoky Mountains National Park
Yellowstone National Park
Redwood National and State Parks
New River Gorge National Park and Preserve
