| River Grove to Lagoa | 4,087.85 mi (6,578.77 km) |
| River Grove to Lagoa | 3,242.35 mi (5,218.05 km) |
| River Grove to Lagos | 4,078.50 mi (6,563.71 km) |
| River Grove to Lamego | 3,977.46 mi (6,401.10 km) |
| River Grove to Leiria | 3,978.87 mi (6,403.38 km) |
| River Grove to Lisbon | 3,998.42 mi (6,434.84 km) |
| River Grove to Loule | 4,108.34 mi (6,611.74 km) |
| River Grove to Loures | 3,993.86 mi (6,427.50 km) |
| River Grove to Lourinha | 3,973.74 mi (6,395.11 km) |
| River Grove to Lousa | 3,991.67 mi (6,423.97 km) |
| River Grove to Lousada | 3,951.22 mi (6,358.88 km) |
| River Grove to Macedo de Cavaleiros | 4,000.65 mi (6,438.42 km) |
| River Grove to Mafamude | 3,941.04 mi (6,342.48 km) |
| River Grove to Mafra | 3,982.43 mi (6,409.10 km) |
| River Grove to Maia | 3,936.44 mi (6,335.09 km) |
