| South River to Montijo | 3,512.20 mi (5,652.34 km) |
| South River to Montilla | 3,648.85 mi (5,872.25 km) |
| South River to Montmelo | 3,855.68 mi (6,205.12 km) |
| South River to Montornes del Valles | 3,856.78 mi (6,206.89 km) |
| South River to Montoro | 3,647.85 mi (5,870.66 km) |
| South River to Monzon | 3,749.42 mi (6,034.10 km) |
| South River to Mora | 3,627.37 mi (5,837.68 km) |
| South River to Moralzarzal | 3,589.41 mi (5,776.59 km) |
| South River to Moron de la Frontera | 3,622.71 mi (5,830.19 km) |
| South River to Mostoles | 3,604.13 mi (5,800.29 km) |
| South River to Motril | 3,729.68 mi (6,002.34 km) |
| South River to Muchamiel | 3,826.49 mi (6,158.14 km) |
| South River to Mula | 3,787.80 mi (6,095.88 km) |
| South River to Munguia | 3,567.71 mi (5,741.67 km) |
| South River to Murcia | 3,807.01 mi (6,126.78 km) |
