| Signal Hill to Cocentaina | 6,033.65 mi (9,710.22 km) |
| Signal Hill to Coin | 5,951.69 mi (9,578.33 km) |
| Signal Hill to Colindres | 5,703.34 mi (9,178.64 km) |
| Signal Hill to Collado-Villalba | 5,805.14 mi (9,342.48 km) |
| Signal Hill to Colmenar Viejo | 5,813.68 mi (9,356.21 km) |
| Signal Hill to Colmenarejo | 5,808.04 mi (9,347.14 km) |
| Signal Hill to Conil de la Frontera | 5,912.47 mi (9,515.19 km) |
| Signal Hill to Consuegra | 5,873.87 mi (9,453.08 km) |
| Signal Hill to Corbera de Llobregat | 5,998.47 mi (9,653.60 km) |
| Signal Hill to Cordoba | 5,896.23 mi (9,489.07 km) |
| Signal Hill to Coria del Rio | 5,869.29 mi (9,445.71 km) |
| Signal Hill to Crevillente | 6,042.12 mi (9,723.86 km) |
| Signal Hill to Cuarte de Huerva | 5,882.92 mi (9,467.64 km) |
| Signal Hill to Cubellas | 5,998.73 mi (9,654.02 km) |
| Signal Hill to Cuellar | 5,758.75 mi (9,267.81 km) |
