| Mountain House to Popovo | 6,479.40 mi (10,427.58 km) |
| Mountain House to Provadia | 6,514.96 mi (10,484.81 km) |
| Mountain House to Radnevo | 6,538.64 mi (10,522.92 km) |
| Mountain House to Radomir | 6,455.71 mi (10,389.46 km) |
| Mountain House to Rakitovo | 6,516.90 mi (10,487.93 km) |
| Mountain House to Rakovski | 6,517.99 mi (10,489.70 km) |
| Mountain House to Razgrad | 6,473.89 mi (10,418.72 km) |
| Mountain House to Razlog | 6,508.77 mi (10,474.85 km) |
| Mountain House to Ruse | 6,443.86 mi (10,370.40 km) |
| Mountain House to Samokov | 6,482.89 mi (10,433.21 km) |
| Mountain House to Sandanski | 6,523.82 mi (10,499.08 km) |
| Mountain House to Sevlievo | 6,475.44 mi (10,421.22 km) |
| Mountain House to Shumen | 6,498.31 mi (10,458.01 km) |
| Mountain House to Silistra | 6,452.55 mi (10,384.38 km) |
| Mountain House to Sliven | 6,523.29 mi (10,498.22 km) |
