Region
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Carmel
1
Carter County
1
Carter County (Mo.)
1
Cass County
1
Cedar Hill
1
Charleston Region
1
Chicago
3
Chicago (Ill.)
1
Christian County
4
Cibola National Forest (N.M.)
1
Cincinnati
1
Cincinnati (Ohio)
1
Clarksville
1
Clearwater Lake
1
Clearwater Lake (Mo.)
1
Colorado
3
Colorado River Watershed (Colo.-Mexico)
1
Colorado, Kansas, Missouri, New Mexico, and Oklahoma
1
Columbia
6
Columbia River
23
Columbia River Watershed
1
Concordia (Mo.)
2
Confederate States of America
12
Congaree National Park (S.C.)
1
Cooper County
1
Cooper County (Mo.)
1
Council Bluffs Region
1
Crow Creek Indian Reservation (S.D.)
3
Crow Creek Sioux Tribe of the Crow Creek Reservation, South Dakota
1
Crow Indian Reservation
1
Crow Indian Reservation (Mont.)
1
Crowley's Ridge (Ark. and Mo.)
1
Current River Region (Mo. and Ark.)
2
Current River Valley (Mo. and Ark.)
1
Dances with Grasshoppers Site
1
Dances with Grasshoppers Site (Mo.)
1
Daviess County
1
De Kalb County
1
De Soto
2
Decaturville Region
1
Delaware
2
Desha County (Ark.)
2
Detroit
1
Dickinson Dam (N.D.)
2
Dickinson Dam Region
1
Douglas County
1
Eleven Point Wild and Scenic River
1
Eleven Point Wild and Scenic River (Mo.)
1
England
2
Etobicoke (Ont.)
2
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