| River Ridge to Castrovillari | 5,695.67 mi (9,166.30 km) |
| River Ridge to Catania | 5,732.18 mi (9,225.05 km) |
| River Ridge to Catanzaro | 5,748.23 mi (9,250.89 km) |
| River Ridge to Cattolica | 5,393.32 mi (8,679.71 km) |
| River Ridge to Cava de' Tirreni | 5,596.17 mi (9,006.17 km) |
| River Ridge to Cavallino | 5,764.64 mi (9,277.29 km) |
| River Ridge to Cavarzere | 5,325.08 mi (8,569.88 km) |
| River Ridge to Cave | 5,477.64 mi (8,815.41 km) |
| River Ridge to Cavriago | 5,273.76 mi (8,487.30 km) |
| River Ridge to Cavriglia | 5,354.83 mi (8,617.77 km) |
| River Ridge to Cazzago San Martino | 5,222.89 mi (8,405.44 km) |
| River Ridge to Ceccano | 5,504.22 mi (8,858.19 km) |
| River Ridge to Cecina | 5,319.34 mi (8,560.65 km) |
| River Ridge to Cefalu | 5,662.92 mi (9,113.60 km) |
| River Ridge to Ceglie Messapico | 5,721.27 mi (9,207.49 km) |
