| Highland to Mangualde | 5,597.70 mi (9,008.62 km) |
| Highland to Marco de Canavezes | 5,557.19 mi (8,943.43 km) |
| Highland to Marinha Grande | 5,584.49 mi (8,987.37 km) |
| Highland to Massama | 5,611.39 mi (9,030.66 km) |
| Highland to Matosinhos | 5,534.44 mi (8,906.81 km) |
| Highland to Mealhada | 5,578.31 mi (8,977.43 km) |
| Highland to Melgaco | 5,513.27 mi (8,872.74 km) |
| Highland to Melres | 5,551.74 mi (8,934.67 km) |
| Highland to Mira | 5,564.36 mi (8,954.98 km) |
| Highland to Miranda do Corvo | 5,595.10 mi (9,004.44 km) |
| Highland to Mirandela | 5,584.16 mi (8,986.84 km) |
| Highland to Mogadouro | 5,609.60 mi (9,027.78 km) |
| Highland to Moimenta da Beira | 5,587.90 mi (8,992.86 km) |
| Highland to Moita | 5,628.37 mi (9,057.98 km) |
| Highland to Moncao | 5,506.37 mi (8,861.64 km) |
