| Lake Monticello to Montalegre | 3,642.72 mi (5,862.40 km) |
| Lake Monticello to Montemor-o-Novo | 3,703.44 mi (5,960.11 km) |
| Lake Monticello to Montemor-o-Velho | 3,640.76 mi (5,859.24 km) |
| Lake Monticello to Montijo | 3,668.54 mi (5,903.95 km) |
| Lake Monticello to Mortagua | 3,656.03 mi (5,883.81 km) |
| Lake Monticello to Moura | 3,755.66 mi (6,044.14 km) |
| Lake Monticello to Murtosa | 3,628.92 mi (5,840.19 km) |
| Lake Monticello to Nazare | 3,636.36 mi (5,852.15 km) |
| Lake Monticello to Nelas | 3,672.63 mi (5,910.52 km) |
| Lake Monticello to Obidos | 3,638.08 mi (5,854.92 km) |
| Lake Monticello to Odemira | 3,711.55 mi (5,973.16 km) |
| Lake Monticello to Odivelas | 3,651.79 mi (5,876.98 km) |
| Lake Monticello to Oeiras | 3,647.77 mi (5,870.52 km) |
| Lake Monticello to Olhao | 3,766.90 mi (6,062.24 km) |
| Lake Monticello to Oliveira de Azemeis | 3,633.98 mi (5,848.32 km) |
