| River Ridge to Castelletto sopra Ticino | 5,159.08 mi (8,302.74 km) |
| River Ridge to Castelli Calepio | 5,215.85 mi (8,394.10 km) |
| River Ridge to Castelnovo ne' Monti | 5,276.90 mi (8,492.34 km) |
| River Ridge to Castelnuovo Berardenga | 5,361.54 mi (8,628.57 km) |
| River Ridge to Castelnuovo di Porto | 5,447.33 mi (8,766.64 km) |
| River Ridge to Castelnuovo di Verona | 5,259.30 mi (8,464.03 km) |
| River Ridge to Castelnuovo Rangone | 5,295.99 mi (8,523.07 km) |
| River Ridge to Castelvetrano | 5,618.82 mi (9,042.61 km) |
| River Ridge to Castelvetro di Modena | 5,298.39 mi (8,526.93 km) |
| River Ridge to Castenaso | 5,320.43 mi (8,562.41 km) |
| River Ridge to Castenedolo | 5,238.09 mi (8,429.89 km) |
| River Ridge to Castiglion Fiorentino | 5,379.73 mi (8,657.84 km) |
| River Ridge to Castiglione del Lago | 5,392.44 mi (8,678.30 km) |
| River Ridge to Castiglione delle Stiviere | 5,249.07 mi (8,447.56 km) |
| River Ridge to Castrolibero | 5,714.52 mi (9,196.63 km) |
