| Mason to Coudekerque-Branche | 4,048.68 mi (6,515.72 km) |
| Mason to Coueron | 3,991.88 mi (6,424.31 km) |
| Mason to Coulommiers | 4,143.40 mi (6,668.16 km) |
| Mason to Courbevoic | 4,107.10 mi (6,609.74 km) |
| Mason to Courcouronnes | 4,122.72 mi (6,634.87 km) |
| Mason to Cournon-d'Auvergne | 4,246.68 mi (6,834.37 km) |
| Mason to Courrieres | 4,087.51 mi (6,578.21 km) |
| Mason to Coutras | 4,126.39 mi (6,640.78 km) |
| Mason to Couzeix | 4,158.98 mi (6,693.23 km) |
| Mason to Cran-Gevrier | 4,363.43 mi (7,022.26 km) |
| Mason to Craponne | 4,311.03 mi (6,937.93 km) |
| Mason to Creil | 4,105.40 mi (6,607.01 km) |
| Mason to Crepy-en-Valois | 4,122.47 mi (6,634.47 km) |
| Mason to Crest | 4,358.35 mi (7,014.09 km) |
| Mason to Creteil | 4,118.92 mi (6,628.76 km) |
