| Keystone to Casamassima | 5,425.74 mi (8,731.88 km) |
| Keystone to Casandrino | 5,301.89 mi (8,532.56 km) |
| Keystone to Casapulla | 5,299.42 mi (8,528.60 km) |
| Keystone to Casarano | 5,513.96 mi (8,873.86 km) |
| Keystone to Casatenovo | 4,941.91 mi (7,953.24 km) |
| Keystone to Casciana Terme | 5,058.52 mi (8,140.90 km) |
| Keystone to Cascina | 5,051.13 mi (8,129.01 km) |
| Keystone to Caselle Torinese | 4,879.69 mi (7,853.11 km) |
| Keystone to Caserta | 5,301.77 mi (8,532.37 km) |
| Keystone to Casier | 5,076.35 mi (8,169.60 km) |
| Keystone to Casorate Primo | 4,938.36 mi (7,947.52 km) |
| Keystone to Casoria | 5,305.24 mi (8,537.96 km) |
| Keystone to Cassano al Ionio | 5,434.76 mi (8,746.39 km) |
| Keystone to Cassano d'Adda | 4,955.34 mi (7,974.85 km) |
| Keystone to Cassano delle Murge | 5,420.91 mi (8,724.11 km) |
