| Prairie Ridge to Devnya | 5,925.30 mi (9,535.84 km) |
| Prairie Ridge to Dimitrovgrad | 5,965.30 mi (9,600.22 km) |
| Prairie Ridge to Dobrich | 5,907.16 mi (9,506.66 km) |
| Prairie Ridge to Dospat | 5,963.60 mi (9,597.49 km) |
| Prairie Ridge to Dupnitsa | 5,903.71 mi (9,501.10 km) |
| Prairie Ridge to Elhovo | 5,975.56 mi (9,616.73 km) |
| Prairie Ridge to Etropole | 5,884.72 mi (9,470.53 km) |
| Prairie Ridge to Gabrovo | 5,907.81 mi (9,507.70 km) |
| Prairie Ridge to Gorna Oryahovitsa | 5,897.42 mi (9,490.98 km) |
| Prairie Ridge to Gotse Delchev | 5,960.41 mi (9,592.35 km) |
| Prairie Ridge to Harmanli | 5,978.40 mi (9,621.30 km) |
| Prairie Ridge to Haskovo | 5,972.19 mi (9,611.31 km) |
| Prairie Ridge to Ihtiman | 5,906.45 mi (9,505.51 km) |
| Prairie Ridge to Isperih | 5,880.11 mi (9,463.13 km) |
| Prairie Ridge to Kardzhali | 5,986.65 mi (9,634.58 km) |
