| Shasta Lake to Montalegre | 5,423.20 mi (8,727.79 km) |
| Shasta Lake to Montemor-o-Novo | 5,563.46 mi (8,953.53 km) |
| Shasta Lake to Montemor-o-Velho | 5,471.52 mi (8,805.56 km) |
| Shasta Lake to Montijo | 5,535.88 mi (8,909.14 km) |
| Shasta Lake to Mortagua | 5,475.20 mi (8,811.49 km) |
| Shasta Lake to Moura | 5,618.01 mi (9,041.32 km) |
| Shasta Lake to Murtosa | 5,445.71 mi (8,764.02 km) |
| Shasta Lake to Nazare | 5,484.79 mi (8,826.92 km) |
| Shasta Lake to Nelas | 5,485.27 mi (8,827.69 km) |
| Shasta Lake to Obidos | 5,493.14 mi (8,840.36 km) |
| Shasta Lake to Odemira | 5,600.04 mi (9,012.40 km) |
| Shasta Lake to Odivelas | 5,520.00 mi (8,883.58 km) |
| Shasta Lake to Oeiras | 5,519.99 mi (8,883.56 km) |
| Shasta Lake to Olhao | 5,658.02 mi (9,105.70 km) |
| Shasta Lake to Oliveira de Azemeis | 5,446.35 mi (8,765.05 km) |
