Place
- Capital District1
- Caracas1
- Carp Creek1
- Cedar Bend, Ann Arbor1
- Cero Punta Coscomat1
- Cerro del Ocote, 30 km NW of Ocozocoautla1
- Champaign1
- Charlevoix1
- Chautauqua1
- Chhinchhip [Chhingchhip], Lushai Hills1
- China Twp., probably mostly near the family farm in Sect. 8, along the Belle River.1
- Cintalapa1
- Clarkston1
- Coclé1
- Colombia1
- Compostela1
- Connecticut1
- Copper Harbor1
- Crawford1
- Córdoba1