| Blackrock to Castelli Calepio | 892.16 mi (1,435.79 km) |
| Blackrock to Castelnovo ne' Monti | 967.11 mi (1,556.41 km) |
| Blackrock to Castelnuovo Berardenga | 1,059.26 mi (1,704.71 km) |
| Blackrock to Castelnuovo di Porto | 1,155.23 mi (1,859.17 km) |
| Blackrock to Castelnuovo di Verona | 932.59 mi (1,500.86 km) |
| Blackrock to Castelnuovo Rangone | 980.14 mi (1,577.38 km) |
| Blackrock to Castelvetrano | 1,408.29 mi (2,266.43 km) |
| Blackrock to Castelvetro di Modena | 983.13 mi (1,582.20 km) |
| Blackrock to Castenaso | 1,001.14 mi (1,611.18 km) |
| Blackrock to Castenedolo | 913.94 mi (1,470.84 km) |
| Blackrock to Castiglion Fiorentino | 1,073.80 mi (1,728.11 km) |
| Blackrock to Castiglione del Lago | 1,088.54 mi (1,751.83 km) |
| Blackrock to Castiglione delle Stiviere | 924.51 mi (1,487.85 km) |
| Blackrock to Castrolibero | 1,429.13 mi (2,299.96 km) |
| Blackrock to Castrovillari | 1,402.87 mi (2,257.70 km) |
