| Great Falls to Cocentaina | 5,120.33 mi (8,240.38 km) |
| Great Falls to Coin | 5,070.43 mi (8,160.07 km) |
| Great Falls to Colindres | 4,777.11 mi (7,688.02 km) |
| Great Falls to Collado-Villalba | 4,896.45 mi (7,880.07 km) |
| Great Falls to Colmenar Viejo | 4,903.82 mi (7,891.94 km) |
| Great Falls to Colmenarejo | 4,899.80 mi (7,885.46 km) |
| Great Falls to Conil de la Frontera | 5,040.43 mi (8,111.80 km) |
| Great Falls to Consuegra | 4,970.25 mi (7,998.85 km) |
| Great Falls to Corbera de Llobregat | 5,062.22 mi (8,146.85 km) |
| Great Falls to Cordoba | 5,007.44 mi (8,058.70 km) |
| Great Falls to Coria del Rio | 4,990.40 mi (8,031.27 km) |
| Great Falls to Crevillente | 5,133.11 mi (8,260.94 km) |
| Great Falls to Cuarte de Huerva | 4,956.64 mi (7,976.94 km) |
| Great Falls to Cubellas | 5,064.42 mi (8,150.39 km) |
| Great Falls to Cuellar | 4,846.90 mi (7,800.33 km) |
