| River Ridge to Carmona | 4,723.76 mi (7,602.16 km) |
| River Ridge to Cartagena | 4,954.70 mi (7,973.82 km) |
| River Ridge to Cartama | 4,794.68 mi (7,716.30 km) |
| River Ridge to Cartaya | 4,650.97 mi (7,485.01 km) |
| River Ridge to Caspe | 4,899.49 mi (7,884.97 km) |
| River Ridge to Cassa de la Selva | 5,017.92 mi (8,075.56 km) |
| River Ridge to Castalla | 4,942.03 mi (7,953.43 km) |
| River Ridge to Castellbisbal | 4,988.08 mi (8,027.54 km) |
| River Ridge to Castelldefels | 4,993.48 mi (8,036.23 km) |
| River Ridge to Castello de Ampurias | 5,016.48 mi (8,073.24 km) |
| River Ridge to Castellon de la Plana | 4,934.27 mi (7,940.94 km) |
| River Ridge to Castilleja de la Cuesta | 4,704.67 mi (7,571.44 km) |
| River Ridge to Catarroja | 4,932.48 mi (7,938.06 km) |
| River Ridge to Catral | 4,947.71 mi (7,962.57 km) |
| River Ridge to Caudete | 4,923.36 mi (7,923.39 km) |
