| Boone to Castelletto sopra Ticino | 4,502.61 mi (7,246.26 km) |
| Boone to Castelli Calepio | 4,559.47 mi (7,337.75 km) |
| Boone to Castelnovo ne' Monti | 4,620.35 mi (7,435.73 km) |
| Boone to Castelnuovo Berardenga | 4,704.98 mi (7,571.94 km) |
| Boone to Castelnuovo di Porto | 4,790.85 mi (7,710.13 km) |
| Boone to Castelnuovo di Verona | 4,602.95 mi (7,407.74 km) |
| Boone to Castelnuovo Rangone | 4,639.47 mi (7,466.51 km) |
| Boone to Castelvetrano | 4,964.48 mi (7,989.56 km) |
| Boone to Castelvetro di Modena | 4,641.87 mi (7,470.37 km) |
| Boone to Castenaso | 4,663.94 mi (7,505.89 km) |
| Boone to Castenedolo | 4,581.70 mi (7,373.53 km) |
| Boone to Castiglion Fiorentino | 4,723.17 mi (7,601.20 km) |
| Boone to Castiglione del Lago | 4,735.88 mi (7,621.67 km) |
| Boone to Castiglione delle Stiviere | 4,592.68 mi (7,391.21 km) |
| Boone to Castrolibero | 5,058.29 mi (8,140.53 km) |
