| Cascades to Cognac | 3,806.26 mi (6,125.59 km) |
| Cascades to Cogolin | 4,183.94 mi (6,733.40 km) |
| Cascades to Colmar | 4,070.75 mi (6,551.24 km) |
| Cascades to Colombes | 3,833.51 mi (6,169.44 km) |
| Cascades to Colomiers | 3,939.06 mi (6,339.30 km) |
| Cascades to Combs-la-Ville | 3,853.09 mi (6,200.96 km) |
| Cascades to Comines | 3,818.00 mi (6,144.47 km) |
| Cascades to Compiegne | 3,844.70 mi (6,187.45 km) |
| Cascades to Concarneau | 3,593.91 mi (5,783.84 km) |
| Cascades to Conde-sur-l'Escaut | 3,849.68 mi (6,195.47 km) |
| Cascades to Conflans-Sainte-Honorine | 3,825.08 mi (6,155.88 km) |
| Cascades to Corbas | 4,037.66 mi (6,497.99 km) |
| Cascades to Corbeil-Essonnes | 3,851.27 mi (6,198.03 km) |
| Cascades to Cormeilles-en-Parisis | 3,830.07 mi (6,163.91 km) |
| Cascades to Cosne sur Loire | 3,902.41 mi (6,280.32 km) |
