| Upper Grand Lagoon to Cognac | 4,554.88 mi (7,330.36 km) |
| Upper Grand Lagoon to Cogolin | 4,931.39 mi (7,936.30 km) |
| Upper Grand Lagoon to Colmar | 4,833.45 mi (7,778.69 km) |
| Upper Grand Lagoon to Colombes | 4,594.76 mi (7,394.55 km) |
| Upper Grand Lagoon to Colomiers | 4,681.40 mi (7,533.98 km) |
| Upper Grand Lagoon to Combs-la-Ville | 4,613.86 mi (7,425.29 km) |
| Upper Grand Lagoon to Comines | 4,584.21 mi (7,377.57 km) |
| Upper Grand Lagoon to Compiegne | 4,607.62 mi (7,415.24 km) |
| Upper Grand Lagoon to Concarneau | 4,347.38 mi (6,996.43 km) |
| Upper Grand Lagoon to Conde-sur-l'Escaut | 4,615.51 mi (7,427.95 km) |
| Upper Grand Lagoon to Conflans-Sainte-Honorine | 4,586.43 mi (7,381.15 km) |
| Upper Grand Lagoon to Corbas | 4,791.44 mi (7,711.07 km) |
| Upper Grand Lagoon to Corbeil-Essonnes | 4,611.83 mi (7,422.02 km) |
| Upper Grand Lagoon to Cormeilles-en-Parisis | 4,591.42 mi (7,389.18 km) |
| Upper Grand Lagoon to Cosne sur Loire | 4,659.82 mi (7,499.25 km) |
