| River Ridge to Noventa Vicentina | 5,296.87 mi (8,524.48 km) |
| River Ridge to Novi di Modena | 5,283.07 mi (8,502.29 km) |
| River Ridge to Novi Ligure | 5,196.28 mi (8,362.61 km) |
| River Ridge to Nuoro | 5,366.77 mi (8,636.98 km) |
| River Ridge to Occhiobello | 5,311.17 mi (8,547.50 km) |
| River Ridge to Oderzo | 5,320.28 mi (8,562.16 km) |
| River Ridge to Oggiono | 5,187.56 mi (8,348.57 km) |
| River Ridge to Olbia | 5,354.32 mi (8,616.94 km) |
| River Ridge to Oleggio | 5,162.80 mi (8,308.72 km) |
| River Ridge to Olgiate Comasco | 5,171.21 mi (8,322.26 km) |
| River Ridge to Olgiate Olona | 5,172.45 mi (8,324.25 km) |
| River Ridge to Omegna | 5,144.27 mi (8,278.91 km) |
| River Ridge to Opera | 5,194.77 mi (8,360.18 km) |
| River Ridge to Oppeano | 5,281.46 mi (8,499.68 km) |
| River Ridge to Orbassano | 5,134.10 mi (8,262.54 km) |
