| Cottage Grove to Popovo | 5,289.54 mi (8,512.68 km) |
| Cottage Grove to Provadia | 5,336.63 mi (8,588.48 km) |
| Cottage Grove to Radnevo | 5,335.78 mi (8,587.11 km) |
| Cottage Grove to Radomir | 5,224.02 mi (8,407.25 km) |
| Cottage Grove to Rakitovo | 5,291.55 mi (8,515.92 km) |
| Cottage Grove to Rakovski | 5,304.71 mi (8,537.11 km) |
| Cottage Grove to Razgrad | 5,288.81 mi (8,511.51 km) |
| Cottage Grove to Razlog | 5,276.13 mi (8,491.11 km) |
| Cottage Grove to Ruse | 5,255.45 mi (8,457.83 km) |
| Cottage Grove to Samokov | 5,255.38 mi (8,457.72 km) |
| Cottage Grove to Sandanski | 5,286.38 mi (8,507.61 km) |
| Cottage Grove to Sevlievo | 5,270.59 mi (8,482.20 km) |
| Cottage Grove to Shumen | 5,315.42 mi (8,554.34 km) |
| Cottage Grove to Silistra | 5,281.04 mi (8,499.02 km) |
| Cottage Grove to Sliven | 5,328.30 mi (8,575.07 km) |
