| Round Lake to Castelletto sopra Ticino | 4,495.30 mi (7,234.48 km) |
| Round Lake to Castelli Calepio | 4,547.99 mi (7,319.28 km) |
| Round Lake to Castelnovo ne' Monti | 4,617.38 mi (7,430.95 km) |
| Round Lake to Castelnuovo Berardenga | 4,706.81 mi (7,574.88 km) |
| Round Lake to Castelnuovo di Porto | 4,798.68 mi (7,722.73 km) |
| Round Lake to Castelnuovo di Verona | 4,589.83 mi (7,386.61 km) |
| Round Lake to Castelnuovo Rangone | 4,633.34 mi (7,456.65 km) |
| Round Lake to Castelvetrano | 5,007.41 mi (8,058.64 km) |
| Round Lake to Castelvetro di Modena | 4,636.10 mi (7,461.09 km) |
| Round Lake to Castenaso | 4,655.98 mi (7,493.08 km) |
| Round Lake to Castenedolo | 4,570.10 mi (7,354.87 km) |
| Round Lake to Castiglion Fiorentino | 4,723.29 mi (7,601.41 km) |
| Round Lake to Castiglione del Lago | 4,737.20 mi (7,623.79 km) |
| Round Lake to Castiglione delle Stiviere | 4,580.90 mi (7,372.25 km) |
| Round Lake to Castrolibero | 5,072.29 mi (8,163.07 km) |
