| Lake Tapps to Mangualde | 5,157.77 mi (8,300.63 km) |
| Lake Tapps to Marco de Canavezes | 5,114.07 mi (8,230.30 km) |
| Lake Tapps to Marinha Grande | 5,163.06 mi (8,309.15 km) |
| Lake Tapps to Massama | 5,203.59 mi (8,374.37 km) |
| Lake Tapps to Matosinhos | 5,095.56 mi (8,200.52 km) |
| Lake Tapps to Mealhada | 5,146.17 mi (8,281.97 km) |
| Lake Tapps to Melgaco | 5,060.98 mi (8,144.87 km) |
| Lake Tapps to Melres | 5,111.82 mi (8,226.67 km) |
| Lake Tapps to Mira | 5,133.91 mi (8,262.22 km) |
| Lake Tapps to Miranda do Corvo | 5,165.11 mi (8,312.44 km) |
| Lake Tapps to Mirandela | 5,130.35 mi (8,256.49 km) |
| Lake Tapps to Mogadouro | 5,153.80 mi (8,294.24 km) |
| Lake Tapps to Moimenta da Beira | 5,142.81 mi (8,276.55 km) |
| Lake Tapps to Moita | 5,219.37 mi (8,399.77 km) |
| Lake Tapps to Moncao | 5,056.17 mi (8,137.12 km) |
