| Boulder to Curtea de Arges | 5,785.47 mi (9,310.81 km) |
| Boulder to Dabuleni | 5,842.76 mi (9,403.01 km) |
| Boulder to Darabani | 5,667.31 mi (9,120.65 km) |
| Boulder to Darmanesti | 5,766.98 mi (9,281.06 km) |
| Boulder to Dej | 5,652.43 mi (9,096.70 km) |
| Boulder to Deva | 5,693.40 mi (9,162.64 km) |
| Boulder to Dolhasca | 5,710.57 mi (9,190.28 km) |
| Boulder to Dorohoi | 5,675.06 mi (9,133.12 km) |
| Boulder to Draganesti-Olt | 5,835.17 mi (9,390.80 km) |
| Boulder to Dragasani | 5,799.94 mi (9,334.11 km) |
| Boulder to Drobeta-Turnu Severin | 5,753.87 mi (9,259.96 km) |
| Boulder to Fagaras | 5,754.52 mi (9,261.01 km) |
| Boulder to Falticeni | 5,700.58 mi (9,174.19 km) |
| Boulder to Fetesti | 5,915.18 mi (9,519.57 km) |
| Boulder to Filiasi | 5,792.62 mi (9,322.33 km) |
