| Clarkston to Castelletto sopra Ticino | 4,721.03 mi (7,597.76 km) |
| Clarkston to Castelli Calepio | 4,778.07 mi (7,689.56 km) |
| Clarkston to Castelnovo ne' Monti | 4,838.42 mi (7,786.69 km) |
| Clarkston to Castelnuovo Berardenga | 4,922.69 mi (7,922.30 km) |
| Clarkston to Castelnuovo di Porto | 5,008.08 mi (8,059.73 km) |
| Clarkston to Castelnuovo di Verona | 4,821.62 mi (7,759.65 km) |
| Clarkston to Castelnuovo Rangone | 4,857.72 mi (7,817.75 km) |
| Clarkston to Castelvetrano | 5,178.59 mi (8,334.14 km) |
| Clarkston to Castelvetro di Modena | 4,860.09 mi (7,821.57 km) |
| Clarkston to Castenaso | 4,882.28 mi (7,857.27 km) |
| Clarkston to Castenedolo | 4,800.30 mi (7,725.33 km) |
| Clarkston to Castiglion Fiorentino | 4,940.97 mi (7,951.72 km) |
| Clarkston to Castiglione del Lago | 4,953.60 mi (7,972.05 km) |
| Clarkston to Castiglione delle Stiviere | 4,811.28 mi (7,743.01 km) |
| Clarkston to Castrolibero | 5,274.84 mi (8,489.04 km) |
