| Ridge to Montalegre | 3,291.08 mi (5,296.49 km) |
| Ridge to Montemor-o-Novo | 3,356.66 mi (5,402.02 km) |
| Ridge to Montemor-o-Velho | 3,291.78 mi (5,297.61 km) |
| Ridge to Montijo | 3,322.10 mi (5,346.41 km) |
| Ridge to Mortagua | 3,306.44 mi (5,321.20 km) |
| Ridge to Moura | 3,409.30 mi (5,486.74 km) |
| Ridge to Murtosa | 3,279.08 mi (5,277.17 km) |
| Ridge to Nazare | 3,288.46 mi (5,292.27 km) |
| Ridge to Nelas | 3,322.75 mi (5,347.44 km) |
| Ridge to Obidos | 3,290.63 mi (5,295.76 km) |
| Ridge to Odemira | 3,366.92 mi (5,418.53 km) |
| Ridge to Odivelas | 3,305.32 mi (5,319.40 km) |
| Ridge to Oeiras | 3,301.58 mi (5,313.37 km) |
| Ridge to Olhao | 3,422.78 mi (5,508.43 km) |
| Ridge to Oliveira de Azemeis | 3,283.91 mi (5,284.94 km) |
