| Big Spring to Castelletto sopra Ticino | 5,506.69 mi (8,862.16 km) |
| Big Spring to Castelli Calepio | 5,559.23 mi (8,946.71 km) |
| Big Spring to Castelnovo ne' Monti | 5,628.83 mi (9,058.73 km) |
| Big Spring to Castelnuovo Berardenga | 5,718.30 mi (9,202.72 km) |
| Big Spring to Castelnuovo di Porto | 5,810.15 mi (9,350.53 km) |
| Big Spring to Castelnuovo di Verona | 5,600.97 mi (9,013.89 km) |
| Big Spring to Castelnuovo Rangone | 5,644.73 mi (9,084.31 km) |
| Big Spring to Castelvetrano | 6,016.73 mi (9,683.00 km) |
| Big Spring to Castelvetro di Modena | 5,647.49 mi (9,088.76 km) |
| Big Spring to Castenaso | 5,667.30 mi (9,120.64 km) |
| Big Spring to Castenedolo | 5,581.32 mi (8,982.27 km) |
| Big Spring to Castiglion Fiorentino | 5,734.77 mi (9,229.22 km) |
| Big Spring to Castiglione del Lago | 5,748.69 mi (9,251.62 km) |
| Big Spring to Castiglione delle Stiviere | 5,592.11 mi (8,999.63 km) |
| Big Spring to Castrolibero | 6,083.71 mi (9,790.78 km) |
