| Spring Lake to Montalegre | 3,766.72 mi (6,061.96 km) |
| Spring Lake to Montemor-o-Novo | 3,817.36 mi (6,143.44 km) |
| Spring Lake to Montemor-o-Velho | 3,758.95 mi (6,049.45 km) |
| Spring Lake to Montijo | 3,781.91 mi (6,086.40 km) |
| Spring Lake to Mortagua | 3,775.44 mi (6,075.98 km) |
| Spring Lake to Moura | 3,868.72 mi (6,226.10 km) |
| Spring Lake to Murtosa | 3,748.91 mi (6,033.29 km) |
| Spring Lake to Nazare | 3,752.45 mi (6,038.98 km) |
| Spring Lake to Nelas | 3,792.62 mi (6,103.63 km) |
| Spring Lake to Obidos | 3,753.33 mi (6,040.40 km) |
| Spring Lake to Odemira | 3,821.72 mi (6,150.47 km) |
| Spring Lake to Odivelas | 3,765.23 mi (6,059.56 km) |
| Spring Lake to Oeiras | 3,760.75 mi (6,052.34 km) |
| Spring Lake to Olhao | 3,876.15 mi (6,238.06 km) |
| Spring Lake to Oliveira de Azemeis | 3,754.43 mi (6,042.17 km) |
