Places
- Central Park (New York, N.Y.)1
- Chaffee County (Colo.)1
- Cheyenne River Indian Reservation (S.D.)1
- Chicago River (Ill.)1
- China.1
- Colorado River (Colo.-Mexico)1
- Colorado.1
- Columbiaville (Mich.)1
- Coney Island (New York, N.Y.)1
- Confederated Salish & Kootenai Tribes of the Flathead Reservation, Montana.1
- Corfu Island (Greece)1
- Crater Lake (Or.)1
- Croton Aqueduct (N.Y.)1
- Crow Creek Indian Reservation (S.D.)1
- Crow Creek Sioux Tribe of the Crow Creek Reservation, South Dakota1
- Crystal Lake (Marquette County, Wis. : Lake)1
- Czechoslovakia.1
- Dakota.1
- Denver (Colo.)1
- Duluth (Minn.)1