| Mountain Ash to Montigny-les-Metz | 455.78 mi (733.51 km) |
| Mountain Ash to Montivilliers | 214.96 mi (345.94 km) |
| Mountain Ash to Montlouis-sur-Loire | 351.38 mi (565.49 km) |
| Mountain Ash to Montlucon | 457.56 mi (736.38 km) |
| Mountain Ash to Montmagny | 314.13 mi (505.54 km) |
| Mountain Ash to Montmorency | 312.58 mi (503.05 km) |
| Mountain Ash to Montpellier | 651.15 mi (1,047.93 km) |
| Mountain Ash to Montreuil | 322.47 mi (518.97 km) |
| Mountain Ash to Montrouge | 320.17 mi (515.26 km) |
| Mountain Ash to Morangis | 325.61 mi (524.02 km) |
| Mountain Ash to Morieres-les-Avignon | 657.67 mi (1,058.42 km) |
| Mountain Ash to Morlaix | 215.38 mi (346.61 km) |
| Mountain Ash to Morsang-sur-Orge | 328.04 mi (527.93 km) |
| Mountain Ash to Mouans-Sartoux | 735.01 mi (1,182.89 km) |
| Mountain Ash to Mougins | 736.80 mi (1,185.77 km) |
