| Piedras Blancas to Devnya | 1,672.84 mi (2,692.18 km) |
| Piedras Blancas to Dimitrovgrad | 1,594.40 mi (2,565.94 km) |
| Piedras Blancas to Dobrich | 1,680.84 mi (2,705.05 km) |
| Piedras Blancas to Dospat | 1,530.15 mi (2,462.55 km) |
| Piedras Blancas to Dupnitsa | 1,467.48 mi (2,361.68 km) |
| Piedras Blancas to Elhovo | 1,640.36 mi (2,639.90 km) |
| Piedras Blancas to Etropole | 1,502.51 mi (2,418.05 km) |
| Piedras Blancas to Gabrovo | 1,567.97 mi (2,523.41 km) |
| Piedras Blancas to Gorna Oryahovitsa | 1,582.15 mi (2,546.23 km) |
| Piedras Blancas to Gotse Delchev | 1,510.06 mi (2,430.20 km) |
| Piedras Blancas to Harmanli | 1,611.35 mi (2,593.21 km) |
| Piedras Blancas to Haskovo | 1,594.79 mi (2,566.56 km) |
| Piedras Blancas to Ihtiman | 1,499.42 mi (2,413.08 km) |
| Piedras Blancas to Isperih | 1,629.78 mi (2,622.87 km) |
| Piedras Blancas to Kardzhali | 1,589.93 mi (2,558.74 km) |
