| Clarksburg to Carmona | 3,776.70 mi (6,078.01 km) |
| Clarksburg to Cartagena | 4,000.67 mi (6,438.46 km) |
| Clarksburg to Cartama | 3,849.28 mi (6,194.82 km) |
| Clarksburg to Cartaya | 3,706.96 mi (5,965.77 km) |
| Clarksburg to Caspe | 3,934.00 mi (6,331.17 km) |
| Clarksburg to Cassa de la Selva | 4,049.02 mi (6,516.27 km) |
| Clarksburg to Castalla | 3,984.35 mi (6,412.18 km) |
| Clarksburg to Castellbisbal | 4,020.55 mi (6,470.45 km) |
| Clarksburg to Castelldefels | 4,026.35 mi (6,479.79 km) |
| Clarksburg to Castello de Ampurias | 4,046.83 mi (6,512.74 km) |
| Clarksburg to Castellon de la Plana | 3,971.89 mi (6,392.14 km) |
| Clarksburg to Castilleja de la Cuesta | 3,758.58 mi (6,048.84 km) |
| Clarksburg to Catarroja | 3,972.08 mi (6,392.45 km) |
| Clarksburg to Catral | 3,991.58 mi (6,423.83 km) |
| Clarksburg to Caudete | 3,965.71 mi (6,382.19 km) |
