| Ridge to Nyon | 3,805.18 mi (6,123.85 km) |
| Ridge to Oberriet | 3,919.07 mi (6,307.13 km) |
| Ridge to Obersiggenthal | 3,860.32 mi (6,212.59 km) |
| Ridge to Oberwil | 3,828.43 mi (6,161.26 km) |
| Ridge to Oberwingert | 3,879.49 mi (6,243.43 km) |
| Ridge to Oftringen | 3,849.54 mi (6,195.24 km) |
| Ridge to Olten | 3,847.85 mi (6,192.51 km) |
| Ridge to Onex | 3,805.30 mi (6,124.04 km) |
| Ridge to Opfikon | 3,873.49 mi (6,233.78 km) |
| Ridge to Ostermundigen | 3,842.15 mi (6,183.34 km) |
| Ridge to Payerne | 3,822.50 mi (6,151.73 km) |
| Ridge to Pfaffikon | 3,884.61 mi (6,251.68 km) |
| Ridge to Plan-les-Ouates | 3,806.51 mi (6,125.99 km) |
| Ridge to Pratteln | 3,834.47 mi (6,170.99 km) |
| Ridge to Prilly | 3,816.56 mi (6,142.16 km) |
