| Grass Valley to Corato | 6,272.39 mi (10,094.43 km) |
| Grass Valley to Corbetta | 5,814.84 mi (9,358.08 km) |
| Grass Valley to Corciano | 6,042.71 mi (9,724.80 km) |
| Grass Valley to Cordenons | 5,891.47 mi (9,481.40 km) |
| Grass Valley to Cori | 6,145.89 mi (9,890.85 km) |
| Grass Valley to Coriano | 6,004.03 mi (9,662.56 km) |
| Grass Valley to Corigliano Calabro | 6,366.85 mi (10,246.46 km) |
| Grass Valley to Corleone | 6,377.17 mi (10,263.07 km) |
| Grass Valley to Cormano | 5,817.43 mi (9,362.24 km) |
| Grass Valley to Cornaredo | 5,816.36 mi (9,360.52 km) |
| Grass Valley to Cornate d'Adda | 5,820.47 mi (9,367.14 km) |
| Grass Valley to Cornedo Vicentino | 5,875.39 mi (9,455.53 km) |
| Grass Valley to Correggio | 5,907.23 mi (9,506.77 km) |
| Grass Valley to Corridonia | 6,070.70 mi (9,769.85 km) |
| Grass Valley to Corsico | 5,822.47 mi (9,370.35 km) |
