| River Ridge to Devnya | 6,029.83 mi (9,704.08 km) |
| River Ridge to Dimitrovgrad | 6,003.44 mi (9,661.61 km) |
| River Ridge to Dobrich | 6,024.56 mi (9,695.59 km) |
| River Ridge to Dospat | 5,962.56 mi (9,595.81 km) |
| River Ridge to Dupnitsa | 5,893.96 mi (9,485.42 km) |
| River Ridge to Elhovo | 6,036.91 mi (9,715.46 km) |
| River Ridge to Etropole | 5,905.85 mi (9,504.55 km) |
| River Ridge to Gabrovo | 5,957.65 mi (9,587.91 km) |
| River Ridge to Gorna Oryahovitsa | 5,960.67 mi (9,592.77 km) |
| River Ridge to Gotse Delchev | 5,948.33 mi (9,572.92 km) |
| River Ridge to Harmanli | 6,020.51 mi (9,689.07 km) |
| River Ridge to Haskovo | 6,007.14 mi (9,667.56 km) |
| River Ridge to Ihtiman | 5,915.11 mi (9,519.46 km) |
| River Ridge to Isperih | 5,979.48 mi (9,623.04 km) |
| River Ridge to Kardzhali | 6,011.29 mi (9,674.24 km) |
