| Upper Grand Lagoon to Marsala | 5,377.32 mi (8,653.96 km) |
| Upper Grand Lagoon to Marsciano | 5,204.69 mi (8,376.14 km) |
| Upper Grand Lagoon to Martano | 5,565.53 mi (8,956.85 km) |
| Upper Grand Lagoon to Martellago | 5,113.33 mi (8,229.11 km) |
| Upper Grand Lagoon to Martina Franca | 5,504.14 mi (8,858.06 km) |
| Upper Grand Lagoon to Martinengo | 5,008.93 mi (8,061.10 km) |
| Upper Grand Lagoon to Martinsicuro | 5,276.38 mi (8,491.51 km) |
| Upper Grand Lagoon to Mascali | 5,510.24 mi (8,867.88 km) |
| Upper Grand Lagoon to Mascalucia | 5,509.56 mi (8,866.79 km) |
| Upper Grand Lagoon to Masera di Padova | 5,107.97 mi (8,220.48 km) |
| Upper Grand Lagoon to Maserada sul Piave | 5,113.79 mi (8,229.86 km) |
| Upper Grand Lagoon to Massa | 5,071.39 mi (8,161.62 km) |
| Upper Grand Lagoon to Massa Lombarda | 5,132.97 mi (8,260.72 km) |
| Upper Grand Lagoon to Massafra | 5,498.58 mi (8,849.11 km) |
| Upper Grand Lagoon to Massalubrense | 5,372.00 mi (8,645.41 km) |
