| Shasta Lake to Cocentaina | 5,841.51 mi (9,401.01 km) |
| Shasta Lake to Coin | 5,793.38 mi (9,323.55 km) |
| Shasta Lake to Colindres | 5,496.79 mi (8,846.22 km) |
| Shasta Lake to Collado-Villalba | 5,618.27 mi (9,041.74 km) |
| Shasta Lake to Colmenar Viejo | 5,625.54 mi (9,053.43 km) |
| Shasta Lake to Colmenarejo | 5,621.66 mi (9,047.19 km) |
| Shasta Lake to Conil de la Frontera | 5,763.25 mi (9,275.06 km) |
| Shasta Lake to Consuegra | 5,692.45 mi (9,161.11 km) |
| Shasta Lake to Corbera de Llobregat | 5,779.50 mi (9,301.20 km) |
| Shasta Lake to Cordoba | 5,730.31 mi (9,222.05 km) |
| Shasta Lake to Coria del Rio | 5,713.33 mi (9,194.72 km) |
| Shasta Lake to Crevillente | 5,854.75 mi (9,422.30 km) |
| Shasta Lake to Cuarte de Huerva | 5,676.10 mi (9,134.80 km) |
| Shasta Lake to Cubellas | 5,782.14 mi (9,305.45 km) |
| Shasta Lake to Cuellar | 5,568.45 mi (8,961.56 km) |
