| Blackrock to Montana | 1,498.42 mi (2,411.48 km) |
| Blackrock to Nova Zagora | 1,648.84 mi (2,653.56 km) |
| Blackrock to Novi Iskar | 1,529.38 mi (2,461.30 km) |
| Blackrock to Novi Pazar | 1,660.84 mi (2,672.86 km) |
| Blackrock to Omurtag | 1,639.44 mi (2,638.42 km) |
| Blackrock to Panagyurishte | 1,575.39 mi (2,535.34 km) |
| Blackrock to Parvomay | 1,633.83 mi (2,629.40 km) |
| Blackrock to Pavlikeni | 1,589.38 mi (2,557.87 km) |
| Blackrock to Pazardzhik | 1,594.39 mi (2,565.93 km) |
| Blackrock to Pernik | 1,525.52 mi (2,455.09 km) |
| Blackrock to Peshtera | 1,600.39 mi (2,575.58 km) |
| Blackrock to Petrich | 1,586.05 mi (2,552.50 km) |
| Blackrock to Pleven | 1,554.35 mi (2,501.49 km) |
| Blackrock to Plovdiv | 1,613.10 mi (2,596.04 km) |
| Blackrock to Pomorie | 1,710.07 mi (2,752.10 km) |
