| Ridge to Alenquer | 3,306.08 mi (5,320.63 km) |
| Ridge to Alfena | 3,271.05 mi (5,264.25 km) |
| Ridge to Alijo | 3,320.53 mi (5,343.87 km) |
| Ridge to Aljustrel | 3,380.27 mi (5,440.02 km) |
| Ridge to Almada | 3,309.47 mi (5,326.07 km) |
| Ridge to Almargem | 3,299.21 mi (5,309.57 km) |
| Ridge to Almeirim | 3,321.53 mi (5,345.48 km) |
| Ridge to Amadora | 3,304.28 mi (5,317.73 km) |
| Ridge to Amarante | 3,292.36 mi (5,298.55 km) |
| Ridge to Amares | 3,270.48 mi (5,263.33 km) |
| Ridge to Amora | 3,312.92 mi (5,331.63 km) |
| Ridge to Anadia | 3,296.75 mi (5,305.61 km) |
| Ridge to Angra do Heroismo | 2,402.13 mi (3,865.86 km) |
| Ridge to Ansiao | 3,310.72 mi (5,328.09 km) |
| Ridge to Anta | 3,272.27 mi (5,266.21 km) |
