25,260 campgrounds
Detroit
Ypsilanti
Chesapeake and Ohio Canal National Historical Park
Flathead
Helena
Baraboo
Lincoln City
Elka Park
Ft Peck Dam And Lake Mt — Devils Creek
Maribel
Del Rio
Devils Tower
Roseland
Stark
Bandon
La Sal
Moab
Weippe
Longville
Kenai
Umbagog National Wildlife Refuge
