| Signal Hill to Mangualde | 5,653.94 mi (9,099.13 km) |
| Signal Hill to Marco de Canavezes | 5,613.31 mi (9,033.75 km) |
| Signal Hill to Marinha Grande | 5,641.25 mi (9,078.71 km) |
| Signal Hill to Massama | 5,668.52 mi (9,122.61 km) |
| Signal Hill to Matosinhos | 5,590.67 mi (8,997.31 km) |
| Signal Hill to Mealhada | 5,634.77 mi (9,068.28 km) |
| Signal Hill to Melgaco | 5,569.08 mi (8,962.57 km) |
| Signal Hill to Melres | 5,607.95 mi (9,025.13 km) |
| Signal Hill to Mira | 5,620.86 mi (9,045.89 km) |
| Signal Hill to Miranda do Corvo | 5,651.62 mi (9,095.41 km) |
| Signal Hill to Mirandela | 5,639.98 mi (9,076.67 km) |
| Signal Hill to Mogadouro | 5,665.37 mi (9,117.54 km) |
| Signal Hill to Moimenta da Beira | 5,643.99 mi (9,083.12 km) |
| Signal Hill to Moita | 5,685.48 mi (9,149.90 km) |
| Signal Hill to Moncao | 5,562.24 mi (8,951.57 km) |
