Place
- Canada; Greenland1
- Caribbean1
- Carlton County, Minnesota1
- Carver County, Minnesota1
- Challis National Forest1
- Charlestown Township1
- Chester Township1
- Chhattīsgarh--Chānda; Raipur; Bastar; Kānker; Patna; Kalahandi; Jeypore1
- Chihuahua1
- China-- Tibet--Lhasa1
- Chisago County, Minnesota1
- Clay County, Minnesota1
- Clements1
- Colombia; Guyana1
- Colombia; Peru; Brazil1
- Colorado--Delta County1
- Colorado--Denver1
- Colorado--Douglas County1
- Colorado--El Paso County1
- Colorado--Elbert County1