| Grass Valley to Carmona | 5,739.26 mi (9,236.45 km) |
| Grass Valley to Cartagena | 5,908.16 mi (9,508.26 km) |
| Grass Valley to Cartama | 5,815.22 mi (9,358.69 km) |
| Grass Valley to Cartaya | 5,689.08 mi (9,155.69 km) |
| Grass Valley to Caspe | 5,755.83 mi (9,263.11 km) |
| Grass Valley to Cassa de la Selva | 5,820.49 mi (9,367.17 km) |
| Grass Valley to Castalla | 5,868.50 mi (9,444.44 km) |
| Grass Valley to Castellbisbal | 5,812.27 mi (9,353.95 km) |
| Grass Valley to Castelldefels | 5,822.38 mi (9,370.22 km) |
| Grass Valley to Castello de Ampurias | 5,807.66 mi (9,346.52 km) |
| Grass Valley to Castellon de la Plana | 5,820.13 mi (9,366.59 km) |
| Grass Valley to Castilleja de la Cuesta | 5,727.19 mi (9,217.03 km) |
| Grass Valley to Catarroja | 5,836.76 mi (9,393.35 km) |
| Grass Valley to Catral | 5,886.02 mi (9,472.63 km) |
| Grass Valley to Caudete | 5,851.48 mi (9,417.05 km) |
