| Keystone to Cassina de' Pecchi | 4,949.02 mi (7,964.69 km) |
| Keystone to Cassino | 5,265.39 mi (8,473.82 km) |
| Keystone to Castagneto Carducci | 5,067.45 mi (8,155.28 km) |
| Keystone to Castano Primo | 4,921.17 mi (7,919.86 km) |
| Keystone to Castel Bolognese | 5,090.85 mi (8,192.92 km) |
| Keystone to Castel Gandolfo | 5,202.90 mi (8,373.27 km) |
| Keystone to Castel Goffredo | 5,004.51 mi (8,053.98 km) |
| Keystone to Castel Maggiore | 5,064.36 mi (8,150.30 km) |
| Keystone to Castel Mella | 4,984.62 mi (8,021.97 km) |
| Keystone to Castel San Giorgio | 5,327.57 mi (8,573.89 km) |
| Keystone to Castel San Giovanni | 4,964.04 mi (7,988.85 km) |
| Keystone to Castel San Pietro Terme | 5,078.73 mi (8,173.43 km) |
| Keystone to Castel Volturno | 5,282.73 mi (8,501.73 km) |
| Keystone to Castelbuono | 5,386.10 mi (8,668.09 km) |
| Keystone to Casteldaccia | 5,354.86 mi (8,617.81 km) |
