| Harrison to Mangualde | 3,362.00 mi (5,410.62 km) |
| Harrison to Marco de Canavezes | 3,327.62 mi (5,355.29 km) |
| Harrison to Marinha Grande | 3,328.84 mi (5,357.24 km) |
| Harrison to Massama | 3,340.07 mi (5,375.32 km) |
| Harrison to Matosinhos | 3,301.23 mi (5,312.82 km) |
| Harrison to Mealhada | 3,334.83 mi (5,366.89 km) |
| Harrison to Melgaco | 3,297.50 mi (5,306.82 km) |
| Harrison to Melres | 3,318.75 mi (5,341.00 km) |
| Harrison to Mira | 3,319.77 mi (5,342.65 km) |
| Harrison to Miranda do Corvo | 3,348.27 mi (5,388.52 km) |
| Harrison to Mirandela | 3,365.81 mi (5,416.75 km) |
| Harrison to Mogadouro | 3,392.09 mi (5,459.05 km) |
| Harrison to Moimenta da Beira | 3,358.83 mi (5,405.52 km) |
| Harrison to Moita | 3,357.43 mi (5,403.26 km) |
| Harrison to Moncao | 3,288.48 mi (5,292.30 km) |
