| North Valley Stream to Montalegre | 3,336.82 mi (5,370.09 km) |
| North Valley Stream to Montemor-o-Novo | 3,402.53 mi (5,475.84 km) |
| North Valley Stream to Montemor-o-Velho | 3,337.62 mi (5,371.38 km) |
| North Valley Stream to Montijo | 3,367.97 mi (5,420.23 km) |
| North Valley Stream to Mortagua | 3,352.27 mi (5,394.95 km) |
| North Valley Stream to Moura | 3,455.17 mi (5,560.56 km) |
| North Valley Stream to Murtosa | 3,324.90 mi (5,350.90 km) |
| North Valley Stream to Nazare | 3,334.32 mi (5,366.07 km) |
| North Valley Stream to Nelas | 3,368.56 mi (5,421.18 km) |
| North Valley Stream to Obidos | 3,336.50 mi (5,369.58 km) |
| North Valley Stream to Odemira | 3,412.78 mi (5,492.34 km) |
| North Valley Stream to Odivelas | 3,351.19 mi (5,393.23 km) |
| North Valley Stream to Oeiras | 3,347.45 mi (5,387.20 km) |
| North Valley Stream to Olhao | 3,468.63 mi (5,582.23 km) |
| North Valley Stream to Oliveira de Azemeis | 3,329.72 mi (5,358.67 km) |
