| Potomac Park to Cognac | 5,657.50 mi (9,104.86 km) |
| Potomac Park to Cogolin | 6,013.62 mi (9,677.98 km) |
| Potomac Park to Colmar | 5,790.16 mi (9,318.35 km) |
| Potomac Park to Colombes | 5,587.97 mi (8,992.96 km) |
| Potomac Park to Colomiers | 5,816.57 mi (9,360.87 km) |
| Potomac Park to Combs-la-Ville | 5,610.27 mi (9,028.86 km) |
| Potomac Park to Comines | 5,521.58 mi (8,886.12 km) |
| Potomac Park to Compiegne | 5,582.03 mi (8,983.41 km) |
| Potomac Park to Concarneau | 5,430.59 mi (8,739.68 km) |
| Potomac Park to Conde-sur-l'Escaut | 5,554.86 mi (8,939.68 km) |
| Potomac Park to Conflans-Sainte-Honorine | 5,579.34 mi (8,979.07 km) |
| Potomac Park to Corbas | 5,836.11 mi (9,392.31 km) |
| Potomac Park to Corbeil-Essonnes | 5,610.52 mi (9,029.26 km) |
| Potomac Park to Cormeilles-en-Parisis | 5,583.88 mi (8,986.38 km) |
| Potomac Park to Cosne sur Loire | 5,684.16 mi (9,147.76 km) |
