| Potomac Park to Casamassima | 6,467.39 mi (10,408.27 km) |
| Potomac Park to Casandrino | 6,387.34 mi (10,279.43 km) |
| Potomac Park to Casapulla | 6,380.96 mi (10,269.17 km) |
| Potomac Park to Casarano | 6,557.67 mi (10,553.54 km) |
| Potomac Park to Casatenovo | 5,975.27 mi (9,616.26 km) |
| Potomac Park to Casciana Terme | 6,131.93 mi (9,868.39 km) |
| Potomac Park to Cascina | 6,121.42 mi (9,851.47 km) |
| Potomac Park to Caselle Torinese | 5,950.27 mi (9,576.03 km) |
| Potomac Park to Caserta | 6,382.51 mi (10,271.66 km) |
| Potomac Park to Casier | 6,068.39 mi (9,766.14 km) |
| Potomac Park to Casorate Primo | 5,986.29 mi (9,634.00 km) |
| Potomac Park to Casoria | 6,390.74 mi (10,284.90 km) |
| Potomac Park to Cassano al Ionio | 6,515.44 mi (10,485.58 km) |
| Potomac Park to Cassano d'Adda | 5,990.37 mi (9,640.56 km) |
| Potomac Park to Cassano delle Murge | 6,466.72 mi (10,407.18 km) |
