| River Grove to Montevarchi | 4,709.53 mi (7,579.25 km) |
| River Grove to Monticello Conte Otto | 4,623.10 mi (7,440.16 km) |
| River Grove to Montichiari | 4,584.50 mi (7,378.03 km) |
| River Grove to Montignoso | 4,633.40 mi (7,456.73 km) |
| River Grove to Montopoli in Val d'Arno | 4,671.17 mi (7,517.52 km) |
| River Grove to Monza | 4,533.96 mi (7,296.70 km) |
| River Grove to Morbegno | 4,523.16 mi (7,279.33 km) |
| River Grove to Mori | 4,589.58 mi (7,386.22 km) |
| River Grove to Morlupo | 4,805.92 mi (7,734.38 km) |
| River Grove to Morrovalle | 4,797.89 mi (7,721.47 km) |
| River Grove to Mortara | 4,526.83 mi (7,285.22 km) |
| River Grove to Mosciano Sant'Angelo | 4,834.31 mi (7,780.07 km) |
| River Grove to Motta di Livenza | 4,654.93 mi (7,491.39 km) |
| River Grove to Motta Sant'Anastasia | 5,111.73 mi (8,226.54 km) |
| River Grove to Mottola | 5,052.82 mi (8,131.72 km) |
