| Ridge to Olivares | 3,494.70 mi (5,624.17 km) |
| Ridge to Olivenza | 3,410.39 mi (5,488.49 km) |
| Ridge to Olot | 3,763.37 mi (6,056.55 km) |
| Ridge to Onate | 3,512.14 mi (5,652.24 km) |
| Ridge to Onda | 3,702.29 mi (5,958.26 km) |
| Ridge to Onteniente | 3,721.23 mi (5,988.73 km) |
| Ridge to Orihuela | 3,728.07 mi (5,999.75 km) |
| Ridge to Osuna | 3,552.05 mi (5,716.47 km) |
| Ridge to Ourense | 3,274.57 mi (5,269.91 km) |
| Ridge to Oviedo | 3,343.87 mi (5,381.43 km) |
| Ridge to Paiporta | 3,711.41 mi (5,972.94 km) |
| Ridge to Pajara | 3,387.51 mi (5,451.68 km) |
| Ridge to Palafolls | 3,791.10 mi (6,101.19 km) |
| Ridge to Palafrugell | 3,802.48 mi (6,119.49 km) |
| Ridge to Palamos | 3,803.11 mi (6,120.51 km) |
