| Two Rivers to Montalegre | 3,868.75 mi (6,226.16 km) |
| Two Rivers to Montemor-o-Novo | 3,967.32 mi (6,384.78 km) |
| Two Rivers to Montemor-o-Velho | 3,889.75 mi (6,259.94 km) |
| Two Rivers to Montijo | 3,935.17 mi (6,333.05 km) |
| Two Rivers to Mortagua | 3,899.99 mi (6,276.44 km) |
| Two Rivers to Moura | 4,021.64 mi (6,472.21 km) |
| Two Rivers to Murtosa | 3,871.20 mi (6,230.10 km) |
| Two Rivers to Nazare | 3,893.47 mi (6,265.94 km) |
| Two Rivers to Nelas | 3,913.95 mi (6,298.90 km) |
| Two Rivers to Obidos | 3,898.33 mi (6,273.76 km) |
| Two Rivers to Odemira | 3,989.00 mi (6,419.67 km) |
| Two Rivers to Odivelas | 3,918.50 mi (6,306.21 km) |
| Two Rivers to Oeiras | 3,916.30 mi (6,302.67 km) |
| Two Rivers to Olhao | 4,046.61 mi (6,512.39 km) |
| Two Rivers to Oliveira de Azemeis | 3,874.34 mi (6,235.15 km) |
