| Fern Down to Popovo | 1,409.89 mi (2,269.01 km) |
| Fern Down to Provadia | 1,467.47 mi (2,361.66 km) |
| Fern Down to Radnevo | 1,436.09 mi (2,311.16 km) |
| Fern Down to Radomir | 1,300.47 mi (2,092.91 km) |
| Fern Down to Rakitovo | 1,370.40 mi (2,205.45 km) |
| Fern Down to Rakovski | 1,395.52 mi (2,245.87 km) |
| Fern Down to Razgrad | 1,415.55 mi (2,278.10 km) |
| Fern Down to Razlog | 1,348.65 mi (2,170.45 km) |
| Fern Down to Ruse | 1,381.15 mi (2,222.75 km) |
| Fern Down to Samokov | 1,334.23 mi (2,147.23 km) |
| Fern Down to Sandanski | 1,353.88 mi (2,178.86 km) |
| Fern Down to Sevlievo | 1,373.81 mi (2,210.93 km) |
| Fern Down to Shumen | 1,442.37 mi (2,321.27 km) |
| Fern Down to Silistra | 1,427.49 mi (2,297.32 km) |
| Fern Down to Sliven | 1,438.61 mi (2,315.21 km) |
