| Ridge to Cognac | 3,536.06 mi (5,690.75 km) |
| Ridge to Cogolin | 3,913.68 mi (6,298.46 km) |
| Ridge to Colmar | 3,803.52 mi (6,121.17 km) |
| Ridge to Colombes | 3,565.75 mi (5,738.53 km) |
| Ridge to Colomiers | 3,668.37 mi (5,903.67 km) |
| Ridge to Combs-la-Ville | 3,585.20 mi (5,769.82 km) |
| Ridge to Comines | 3,552.17 mi (5,716.66 km) |
| Ridge to Compiegne | 3,577.50 mi (5,757.43 km) |
| Ridge to Concarneau | 3,324.33 mi (5,349.99 km) |
| Ridge to Conde-sur-l'Escaut | 3,583.68 mi (5,767.37 km) |
| Ridge to Conflans-Sainte-Honorine | 3,557.36 mi (5,725.01 km) |
| Ridge to Corbas | 3,768.22 mi (6,064.36 km) |
| Ridge to Corbeil-Essonnes | 3,583.31 mi (5,766.79 km) |
| Ridge to Cormeilles-en-Parisis | 3,562.35 mi (5,733.04 km) |
| Ridge to Cosne sur Loire | 3,633.65 mi (5,847.79 km) |
