| Grass Valley to Castelfidardo | 6,059.18 mi (9,751.30 km) |
| Grass Valley to Castelfiorentino | 5,978.51 mi (9,621.48 km) |
| Grass Valley to Castelfranco di Sopra | 5,994.16 mi (9,646.66 km) |
| Grass Valley to Castelfranco di Sotto | 5,966.61 mi (9,602.33 km) |
| Grass Valley to Castelfranco Emilia | 5,924.70 mi (9,534.88 km) |
| Grass Valley to Castelfranco Veneto | 5,888.66 mi (9,476.88 km) |
| Grass Valley to Castellabate | 6,283.13 mi (10,111.73 km) |
| Grass Valley to Castellammare del Golfo | 6,352.42 mi (10,223.23 km) |
| Grass Valley to Castellammare di Stabia | 6,245.54 mi (10,051.23 km) |
| Grass Valley to Castellamonte | 5,784.33 mi (9,308.98 km) |
| Grass Valley to Castellana Grotte | 6,308.91 mi (10,153.21 km) |
| Grass Valley to Castellaneta | 6,317.37 mi (10,166.83 km) |
| Grass Valley to Castellanza | 5,806.04 mi (9,343.92 km) |
| Grass Valley to Castellarano | 5,918.73 mi (9,525.28 km) |
| Grass Valley to Castelleone | 5,848.63 mi (9,412.47 km) |
