| Cypress Lake to Mangualde | 4,252.50 mi (6,843.74 km) |
| Cypress Lake to Marco de Canavezes | 4,224.59 mi (6,798.81 km) |
| Cypress Lake to Marinha Grande | 4,203.90 mi (6,765.52 km) |
| Cypress Lake to Massama | 4,200.05 mi (6,759.32 km) |
| Cypress Lake to Matosinhos | 4,196.52 mi (6,753.65 km) |
| Cypress Lake to Mealhada | 4,220.14 mi (6,791.67 km) |
| Cypress Lake to Melgaco | 4,206.37 mi (6,769.49 km) |
| Cypress Lake to Melres | 4,213.40 mi (6,780.80 km) |
| Cypress Lake to Mira | 4,204.85 mi (6,767.05 km) |
| Cypress Lake to Miranda do Corvo | 4,230.13 mi (6,807.73 km) |
| Cypress Lake to Mirandela | 4,269.66 mi (6,871.35 km) |
| Cypress Lake to Mogadouro | 4,295.40 mi (6,912.78 km) |
| Cypress Lake to Moimenta da Beira | 4,254.77 mi (6,847.38 km) |
| Cypress Lake to Moita | 4,216.96 mi (6,786.54 km) |
| Cypress Lake to Moncao | 4,196.17 mi (6,753.09 km) |
