| Alum Rock to Carmona | 5,858.43 mi (9,428.23 km) |
| Alum Rock to Cartagena | 6,030.21 mi (9,704.69 km) |
| Alum Rock to Cartama | 5,934.42 mi (9,550.52 km) |
| Alum Rock to Cartaya | 5,807.15 mi (9,345.71 km) |
| Alum Rock to Caspe | 5,880.71 mi (9,464.09 km) |
| Alum Rock to Cassa de la Selva | 5,947.13 mi (9,570.98 km) |
| Alum Rock to Castalla | 5,991.40 mi (9,642.22 km) |
| Alum Rock to Castellbisbal | 5,938.27 mi (9,556.73 km) |
| Alum Rock to Castelldefels | 5,948.27 mi (9,572.82 km) |
| Alum Rock to Castello de Ampurias | 5,934.58 mi (9,550.78 km) |
| Alum Rock to Castellon de la Plana | 5,944.25 mi (9,566.35 km) |
| Alum Rock to Castilleja de la Cuesta | 5,846.04 mi (9,408.28 km) |
| Alum Rock to Catarroja | 5,960.32 mi (9,592.21 km) |
| Alum Rock to Catral | 6,008.55 mi (9,669.83 km) |
| Alum Rock to Caudete | 5,974.27 mi (9,614.67 km) |
