| Mason to Cognac | 4,097.30 mi (6,593.96 km) |
| Mason to Cogolin | 4,474.75 mi (7,201.41 km) |
| Mason to Colmar | 4,339.82 mi (6,984.27 km) |
| Mason to Colombes | 4,106.27 mi (6,608.40 km) |
| Mason to Colomiers | 4,236.42 mi (6,817.85 km) |
| Mason to Combs-la-Ville | 4,126.62 mi (6,641.16 km) |
| Mason to Comines | 4,080.77 mi (6,567.37 km) |
| Mason to Compiegne | 4,114.32 mi (6,621.35 km) |
| Mason to Concarneau | 3,879.78 mi (6,243.90 km) |
| Mason to Conde-sur-l'Escaut | 4,113.20 mi (6,619.55 km) |
| Mason to Conflans-Sainte-Honorine | 4,097.70 mi (6,594.61 km) |
| Mason to Corbas | 4,321.16 mi (6,954.23 km) |
| Mason to Corbeil-Essonnes | 4,125.17 mi (6,638.83 km) |
| Mason to Cormeilles-en-Parisis | 4,102.67 mi (6,602.60 km) |
| Mason to Cosne sur Loire | 4,181.22 mi (6,729.03 km) |
