Region
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Baja California (State)
1
Balkan Peninsula
1
Baltimore
1
Baltimore (Md.)
1
Baltimore County
1
Bathurst Region
1
Bearpaw Formation
1
Beaver Dam Mountains
1
Beaver Dam Mountains (Utah)
1
Belgium
1
Benton County
1
Benton County (Wash.)
1
Big Burro Mountains
1
Big Burro Mountains (N.M.)
1
Big Hatchet Mountains
1
Big Hatchet Peak (N.M.)
1
Big Hill Area
1
Bighorn Basin (Mont. and Wyo.)
3
Black Hills (S.D. and Wyo.)
2
Black Mesa (Navajo County and Apache County, Ariz.)
1
Black Mesa Region
1
Black Mesa Region (Navajo County and Apache County)
1
Blue Ridge Mountains
5
Bolivia
1
Boston
1
Boston (Mass.)
1
Bowen Basin (Qld.)
1
Brazil
6
Brazos River Valley
1
British Columbia
5
Bulgaria
2
Butte-Silver Bow
1
Caicos Platform
1
California
65
California, Northern
5
California, Southern
15
Cambridge <1973>
1
Campania
1
Campania (Italy)
1
Campanie
1
Campanie (Italie)
1
Canada
2
Canada, Eastern
1
Canadian Rockies (B.C. and Alta.)
1
Canyonlands National Park
1
Canyonlands National Park (Utah)
1
Caribbean Area
3
Carlsbad Region
2
Carlsbad Region (N.M.)
1
Carpathian Mountains
1
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