Region
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Brazil
4
British Columbia
8
Brooks Range
2
Bryce Canyon National Park (Utah)
2
Burgess Shale
1
Burgess Shale (B.C.)
2
Cache Creek (B.C.)
1
California
25
California, Southern
1
Calvert Cliffs
1
Calvert County
1
Canada
8
Canadian Shield
1
Canal Zone
6
Canyonlands National Park (Utah)
2
Capitol Reef National Park (Utah)
2
Caribbean Area
2
Carpathian Mountains Region
1
Casper site, Wyoming
1
Cedar Breaks National Monument (Utah)
2
Charleston
2
Chatham Island
1
Chatham Island (N.Z.)
1
Chattahoochee River Valley
1
Chengjiang (Yunnan Sheng)
4
Chesapeake Bay Region
1
Chesapeake Bay Region (Md. and Va.)
1
Chile
1
China
18
Cincinnati Region
2
City of Rocks National Reserve (Idaho)
2
Cloverly Formation
3
Colombia
1
Colorado
20
Colorado National Monument (Colo.)
2
Colorado Plateau
1
Columbia County
1
Connecticut Valley
1
Cotte de Saint-Brelade Site (Jersey)
1
Cradle of Humankind World Heritage Site (South Africa)
4
Crawford Region
1
Cuiabá (Mato Grosso)
1
Curecanti National Recreation Area (Colo.)
2
Cutler Formation
1
Dakota
1
Dakota Aquifer
1
Dakota Formation
1
Dinosaur National Monument (Colo. and Utah)
2
Earth
1
Earth (Planet)
2
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