| Lake Monticello to Cehegin | 4,036.09 mi (6,495.46 km) |
| Lake Monticello to Cervello | 4,117.11 mi (6,625.85 km) |
| Lake Monticello to Cervera | 4,076.98 mi (6,561.27 km) |
| Lake Monticello to Ceuti | 4,062.27 mi (6,537.59 km) |
| Lake Monticello to Cheste | 4,048.78 mi (6,515.88 km) |
| Lake Monticello to Chiclana de la Frontera | 3,869.58 mi (6,227.48 km) |
| Lake Monticello to Chipiona | 3,846.10 mi (6,189.71 km) |
| Lake Monticello to Chiva | 4,047.32 mi (6,513.54 km) |
| Lake Monticello to Churriana de la Vega | 3,972.98 mi (6,393.89 km) |
| Lake Monticello to Ciempozuelos | 3,887.69 mi (6,256.63 km) |
| Lake Monticello to Cieza | 4,050.26 mi (6,518.27 km) |
| Lake Monticello to Cisterniga | 3,797.01 mi (6,110.70 km) |
| Lake Monticello to Ciudad de Melilla | 4,065.12 mi (6,542.18 km) |
| Lake Monticello to Ciudad Real | 3,906.34 mi (6,286.65 km) |
| Lake Monticello to Ciudad-Rodrigo | 3,734.37 mi (6,009.89 km) |
