| Grass Valley to Cehegin | 5,852.95 mi (9,419.42 km) |
| Grass Valley to Cervello | 5,815.70 mi (9,359.46 km) |
| Grass Valley to Cervera | 5,778.31 mi (9,299.28 km) |
| Grass Valley to Ceuti | 5,873.03 mi (9,451.73 km) |
| Grass Valley to Cheste | 5,822.79 mi (9,370.88 km) |
| Grass Valley to Chiclana de la Frontera | 5,770.50 mi (9,286.71 km) |
| Grass Valley to Chipiona | 5,743.92 mi (9,243.94 km) |
| Grass Valley to Chiva | 5,821.95 mi (9,369.53 km) |
| Grass Valley to Churriana de la Vega | 5,831.01 mi (9,384.10 km) |
| Grass Valley to Ciempozuelos | 5,682.18 mi (9,144.58 km) |
| Grass Valley to Cieza | 5,859.48 mi (9,429.93 km) |
| Grass Valley to Cisterniga | 5,571.27 mi (8,966.09 km) |
| Grass Valley to Ciudad de Melilla | 5,951.59 mi (9,578.16 km) |
| Grass Valley to Ciudad Real | 5,729.62 mi (9,220.93 km) |
| Grass Valley to Ciudad-Rodrigo | 5,552.41 mi (8,935.74 km) |
