| Pike Creek Valley to Oerlinghausen | 3,913.15 mi (6,297.61 km) |
| Pike Creek Valley to Oestrich-Winkel | 3,941.88 mi (6,343.85 km) |
| Pike Creek Valley to Offenburg | 3,983.58 mi (6,410.95 km) |
| Pike Creek Valley to Oftersheim | 3,983.81 mi (6,411.33 km) |
| Pike Creek Valley to Ohrdruf | 4,026.85 mi (6,480.60 km) |
| Pike Creek Valley to Ohringen | 4,026.13 mi (6,479.43 km) |
| Pike Creek Valley to Olbernhau | 4,133.67 mi (6,652.49 km) |
| Pike Creek Valley to Olching | 4,131.10 mi (6,648.36 km) |
| Pike Creek Valley to Oldenburg | 3,863.75 mi (6,218.10 km) |
| Pike Creek Valley to Oldenburg in Holstein | 3,932.80 mi (6,329.22 km) |
| Pike Creek Valley to Olfen | 3,869.65 mi (6,227.59 km) |
| Pike Creek Valley to Olpe | 3,906.61 mi (6,287.08 km) |
| Pike Creek Valley to Olsberg | 3,923.10 mi (6,313.62 km) |
| Pike Creek Valley to Oranienburg | 4,065.36 mi (6,542.56 km) |
| Pike Creek Valley to Ortenberg | 3,974.13 mi (6,395.74 km) |
