| Boone to Cuenca | 4,179.31 mi (6,725.94 km) |
| Boone to Cuevas del Almanzora | 4,274.01 mi (6,878.36 km) |
| Boone to Cullera | 4,297.22 mi (6,915.70 km) |
| Boone to Culleredo | 3,797.80 mi (6,111.97 km) |
| Boone to Cunit | 4,326.46 mi (6,962.76 km) |
| Boone to Daganzo de Arriba | 4,103.00 mi (6,603.13 km) |
| Boone to Daimiel | 4,135.88 mi (6,656.06 km) |
| Boone to Don Benito | 4,029.06 mi (6,484.14 km) |
| Boone to Donostia | 4,097.91 mi (6,594.95 km) |
| Boone to Dos Hermanas | 4,072.34 mi (6,553.80 km) |
| Boone to Durango | 4,071.68 mi (6,552.73 km) |
| Boone to Ecija | 4,107.26 mi (6,610.00 km) |
| Boone to Ejea de los Caballeros | 4,169.59 mi (6,710.31 km) |
| Boone to El Alamo | 4,085.61 mi (6,575.15 km) |
| Boone to El Arahal | 4,091.49 mi (6,584.61 km) |
