Region
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Buguias
2
Buguias (Philippines)
2
Bulgaria
4
Burma
3
Butler County
3
Byzantine Empire
1
Cabanaconde
2
Cabanaconde (Peru)
2
Cahokia Mounds State Historic Park
1
California
42
Calixtlahuaca
1
Calixtlahuaca (Mexico)
1
Cambodia
3
Cameroon
5
Canada
36
Canada, Western
2
Caribbean Area
6
Casamance
1
Casamance (Senegal)
1
Castile
2
Castile (Spain)
2
Cauca River Valley
3
Cauca River Valley (Colombia)
2
Census,1940
1
Central America
14
Cerro de Trincheras Site
2
Cerro de Trincheras Site (Mexico)
2
Charlevoix
1
Charlevoix Region (Québec)
1
Chesapeake Bay Region (Md. and Va.)
3
Chesapeake Bay Watershed
1
Chesapeake and Ohio Canal National Historical Park
1
Chiapas
4
Chiapas (Mexico)
3
Chile
8
China
88
China (Repⵢlica Popular, 1949 )
1
China (Repⵢlica Pupular, 1949 )
1
China, Southwest
1
Chunhuhub
1
Chunhuhub (Mexico)
1
Coachella Valley
3
Coachella Valley (Calif.)
1
Cochabamba Region
3
Cochabamba Region (Bolivia)
3
Colombia
27
Colorado
5
Colorado River Watershed (Colo.-Mexico)
1
Communist countries
2
Concord (Mass.)
1
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