1,000 campgrounds
Mount Rainier National Park
Blue Ridge Parkway
Curecanti National Recreation Area
Great Basin National Park
Lake Mead National Recreation Area
Wind Cave National Park
Great Smoky Mountains National Park
Biscayne National Park
Death Valley National Park
Buffalo National River
Big Bend National Park
Kenai Fjords National Park
North Cascades National Park
Yellowstone National Park
Everglades National Park
Glacier National Park
George Washington Memorial Parkway
Gulf Islands National Seashore