| Elk River to Devnya | 5,331.77 mi (8,580.66 km) |
| Elk River to Dimitrovgrad | 5,332.48 mi (8,581.79 km) |
| Elk River to Dobrich | 5,320.98 mi (8,563.30 km) |
| Elk River to Dospat | 5,307.04 mi (8,540.86 km) |
| Elk River to Dupnitsa | 5,239.86 mi (8,432.75 km) |
| Elk River to Elhovo | 5,357.21 mi (8,621.60 km) |
| Elk River to Etropole | 5,238.82 mi (8,431.07 km) |
| Elk River to Gabrovo | 5,280.13 mi (8,497.55 km) |
| Elk River to Gorna Oryahovitsa | 5,277.57 mi (8,493.43 km) |
| Elk River to Gotse Delchev | 5,297.12 mi (8,524.89 km) |
| Elk River to Harmanli | 5,348.43 mi (8,607.46 km) |
| Elk River to Haskovo | 5,337.66 mi (8,590.14 km) |
| Elk River to Ihtiman | 5,253.77 mi (8,455.13 km) |
| Elk River to Isperih | 5,281.86 mi (8,500.33 km) |
| Elk River to Kardzhali | 5,346.37 mi (8,604.16 km) |
