| Upper Grand Lagoon to Montijo | 4,403.34 mi (7,086.50 km) |
| Upper Grand Lagoon to Montilla | 4,535.49 mi (7,299.16 km) |
| Upper Grand Lagoon to Montmelo | 4,777.29 mi (7,688.30 km) |
| Upper Grand Lagoon to Montornes del Valles | 4,778.37 mi (7,690.05 km) |
| Upper Grand Lagoon to Montoro | 4,537.89 mi (7,303.03 km) |
| Upper Grand Lagoon to Monzon | 4,669.54 mi (7,514.90 km) |
| Upper Grand Lagoon to Mora | 4,528.97 mi (7,288.68 km) |
| Upper Grand Lagoon to Moralzarzal | 4,496.42 mi (7,236.28 km) |
| Upper Grand Lagoon to Moron de la Frontera | 4,504.34 mi (7,249.03 km) |
| Upper Grand Lagoon to Mostoles | 4,509.37 mi (7,257.13 km) |
| Upper Grand Lagoon to Motril | 4,613.39 mi (7,424.54 km) |
| Upper Grand Lagoon to Muchamiel | 4,727.29 mi (7,607.84 km) |
| Upper Grand Lagoon to Mula | 4,684.24 mi (7,538.56 km) |
| Upper Grand Lagoon to Munguia | 4,490.36 mi (7,226.54 km) |
| Upper Grand Lagoon to Murcia | 4,703.89 mi (7,570.17 km) |
