| White Bear Lake to Mangualde | 4,122.24 mi (6,634.10 km) |
| White Bear Lake to Marco de Canavezes | 4,082.60 mi (6,570.31 km) |
| White Bear Lake to Marinha Grande | 4,105.89 mi (6,607.79 km) |
| White Bear Lake to Massama | 4,130.86 mi (6,647.97 km) |
| White Bear Lake to Matosinhos | 4,059.12 mi (6,532.52 km) |
| White Bear Lake to Mealhada | 4,101.50 mi (6,600.73 km) |
| White Bear Lake to Melgaco | 4,040.96 mi (6,503.30 km) |
| White Bear Lake to Melres | 4,076.54 mi (6,560.55 km) |
| White Bear Lake to Mira | 4,087.32 mi (6,577.91 km) |
| White Bear Lake to Miranda do Corvo | 4,117.83 mi (6,627.01 km) |
| White Bear Lake to Mirandela | 4,111.75 mi (6,617.22 km) |
| White Bear Lake to Mogadouro | 4,137.48 mi (6,658.63 km) |
| White Bear Lake to Moimenta da Beira | 4,113.55 mi (6,620.11 km) |
| White Bear Lake to Moita | 4,147.92 mi (6,675.44 km) |
| White Bear Lake to Moncao | 4,033.63 mi (6,491.50 km) |
