| River Edge to Mangualde | 3,379.95 mi (5,439.51 km) |
| River Edge to Marco de Canavezes | 3,345.57 mi (5,384.17 km) |
| River Edge to Marinha Grande | 3,346.79 mi (5,386.13 km) |
| River Edge to Massama | 3,358.01 mi (5,404.19 km) |
| River Edge to Matosinhos | 3,319.18 mi (5,341.70 km) |
| River Edge to Mealhada | 3,352.78 mi (5,395.78 km) |
| River Edge to Melgaco | 3,315.44 mi (5,335.68 km) |
| River Edge to Melres | 3,336.69 mi (5,369.89 km) |
| River Edge to Mira | 3,337.72 mi (5,371.54 km) |
| River Edge to Miranda do Corvo | 3,366.22 mi (5,417.41 km) |
| River Edge to Mirandela | 3,383.75 mi (5,445.62 km) |
| River Edge to Mogadouro | 3,410.03 mi (5,487.92 km) |
| River Edge to Moimenta da Beira | 3,376.78 mi (5,434.40 km) |
| River Edge to Moita | 3,375.37 mi (5,432.13 km) |
| River Edge to Moncao | 3,306.41 mi (5,321.16 km) |
