Region
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Botswana
1
Boulder
1
Boundary Waters Canoe Area (Minn.)
2
Branchville
1
Brauweiler (Pulheim)
1
Brauweiler <Pulheim, 1998>
1
Brazil
27
Brices Cross Roads National Battlefield Site (Miss.)
1
Bridger National Forest
1
Bridger National Forest (Wyo.)
1
British Columbia
4
Brooks River (Alaska)
1
Broward County
2
Brunswick (Ga.)
1
Brésil
1
Buck Island Reef National Monument
1
Buck Island Reef National Monument (United States Virgin Islands)
1
Cabrillo National Monument (San Diego, Calif.)
1
Calamian Group
1
Calcasieu Lock
1
Calcasieu Lock (La.)
1
California
144
California Desert National Conservation Area (Calif.)
2
California, Northern
1
California, Southern
2
Californie
2
Camas National Wildlife Refuge
1
Camas National Wildlife Refuge (Idaho)
1
Cambodia
4
Cameroon
2
Campania
1
Canada
67
Canada, Northern
2
Canadian River
1
Canadian Rocky Mountain Parks World Heritage Site (Alta. and B.C.)
1
Canadian-American Border Region
1
Canyon de Chelly National Monument (Ariz.)
1
Canyons of the Ancients National Monument
1
Canyons of the Ancients National Monument (Colo.)
2
Cape Cod
1
Cape Cod (Mass.)
1
Cape Hatteras National Seashore
1
Cape Hatteras National Seashore (N.C.)
1
Cape Lookout National Seashore
3
Cape Lookout National Seashore (N.C.)
3
Cape May National Wildlife Refuge
1
Cape Town
1
Captain John Smith Chesapeake National Historic Trail
1
Capulin Volcano National Monument
2
Capulin Volcano National Monument (N.M.)
2
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