| Castleton to Cocentaina | 1,029.01 mi (1,656.02 km) |
| Castleton to Coin | 1,175.86 mi (1,892.37 km) |
| Castleton to Colindres | 706.72 mi (1,137.36 km) |
| Castleton to Collado-Villalba | 899.34 mi (1,447.34 km) |
| Castleton to Colmenar Viejo | 896.57 mi (1,442.89 km) |
| Castleton to Colmenarejo | 904.37 mi (1,455.44 km) |
| Castleton to Conil de la Frontera | 1,211.69 mi (1,950.03 km) |
| Castleton to Consuegra | 978.53 mi (1,574.79 km) |
| Castleton to Corbera de Llobregat | 862.30 mi (1,387.74 km) |
| Castleton to Cordoba | 1,092.26 mi (1,757.81 km) |
| Castleton to Coria del Rio | 1,141.87 mi (1,837.65 km) |
| Castleton to Crevillente | 1,062.01 mi (1,709.14 km) |
| Castleton to Cuarte de Huerva | 831.66 mi (1,338.43 km) |
| Castleton to Cubellas | 873.81 mi (1,406.26 km) |
| Castleton to Cuellar | 848.03 mi (1,364.78 km) |
