| Grass Valley to Castelletto sopra Ticino | 5,792.80 mi (9,322.61 km) |
| Grass Valley to Castelli Calepio | 5,833.74 mi (9,388.51 km) |
| Grass Valley to Castelnovo ne' Monti | 5,915.27 mi (9,519.70 km) |
| Grass Valley to Castelnuovo Berardenga | 6,008.27 mi (9,669.38 km) |
| Grass Valley to Castelnuovo di Porto | 6,106.02 mi (9,826.69 km) |
| Grass Valley to Castelnuovo di Verona | 5,869.45 mi (9,445.97 km) |
| Grass Valley to Castelnuovo Rangone | 5,923.94 mi (9,533.66 km) |
| Grass Valley to Castelvetrano | 6,369.41 mi (10,250.58 km) |
| Grass Valley to Castelvetro di Modena | 5,927.24 mi (9,538.97 km) |
| Grass Valley to Castenaso | 5,941.43 mi (9,561.81 km) |
| Grass Valley to Castenedolo | 5,854.11 mi (9,421.28 km) |
| Grass Valley to Castiglion Fiorentino | 6,020.33 mi (9,688.79 km) |
| Grass Valley to Castiglione del Lago | 6,035.70 mi (9,713.52 km) |
| Grass Valley to Castiglione delle Stiviere | 5,863.81 mi (9,436.89 km) |
| Grass Valley to Castrolibero | 6,374.65 mi (10,259.01 km) |
