| Potomac Park to Cabestany | 5,919.31 mi (9,526.21 km) |
| Potomac Park to Cabries | 5,965.23 mi (9,600.11 km) |
| Potomac Park to Cachan | 5,596.97 mi (9,007.45 km) |
| Potomac Park to Caen | 5,490.44 mi (8,836.01 km) |
| Potomac Park to Cagnes-sur-Mer | 6,012.85 mi (9,676.75 km) |
| Potomac Park to Cahors | 5,779.53 mi (9,301.26 km) |
| Potomac Park to Calais | 5,476.91 mi (8,814.23 km) |
| Potomac Park to Caluire-et-Cuire | 5,827.88 mi (9,379.06 km) |
| Potomac Park to Cambrai | 5,557.39 mi (8,943.76 km) |
| Potomac Park to Canet-en-Roussillon | 5,920.34 mi (9,527.87 km) |
| Potomac Park to Cannes | 6,014.22 mi (9,678.96 km) |
| Potomac Park to Canteleu | 5,523.28 mi (8,888.86 km) |
| Potomac Park to Capbreton | 5,715.74 mi (9,198.59 km) |
| Potomac Park to Carcassonne | 5,872.19 mi (9,450.37 km) |
| Potomac Park to Carmaux | 5,824.08 mi (9,372.96 km) |
