- Camden, Camden County, New Jersey1 objects
- Canyon de Chelly, Apache County, Arizona2 objects
- Carrizo Rock, San Luis Obispo County, California1 objects
- Casa Grande Ruins, Pinal County, Arizona1 objects
- Cave of the Owls, Monzon Valley, Huanuco2 objects
- Celilo, Wasco County, Oregon3 objects
- Cerro Sechin, Ancash Region, Northern Peru23 objects
- Cerro Viejo, Marcahuamachuco, Northern Peru3 objects
- Cerro de Fraile, Canete Valley, Peru1 objects
- Cerro de Fraile, Cañete Region, Central Peru1 objects
- Cerro de las Monjas, Marcahuamachuco, Northern Peru13 objects
- Cerro de los Corrales, Marcahuamachuco, Northern Peru1 objects
- Chancan, Moche valley, La Libertad Region1 objects
- Chavín de Huantar, Ancash Region, Peru2 objects
- Chicago, Cook County, Illinois2 objects
- Chicama Valley, La Libertad Region, Northern Peru1 objects
- Chimu Capac, Supe district, Lima Region1 objects
- China1 objects
- Clear Lake, Lake County, California1 objects
- Cliff Palace, Mesa Verde National Park, Montezuma County2 objects