| Keystone to Carpentras | 4,786.55 mi (7,703.21 km) |
| Keystone to Carquefou | 4,419.44 mi (7,112.40 km) |
| Keystone to Carqueiranne | 4,857.51 mi (7,817.41 km) |
| Keystone to Carrieres-sous-Poissy | 4,547.42 mi (7,318.36 km) |
| Keystone to Carrieres-sur-Seine | 4,559.05 mi (7,337.08 km) |
| Keystone to Carros | 4,893.45 mi (7,875.24 km) |
| Keystone to Carvin | 4,558.02 mi (7,335.43 km) |
| Keystone to Castanet-Tolosan | 4,630.64 mi (7,452.30 km) |
| Keystone to Castelginest | 4,623.81 mi (7,441.30 km) |
| Keystone to Castelnau-le-Lez | 4,742.20 mi (7,631.83 km) |
| Keystone to Castelnaudary | 4,656.60 mi (7,494.08 km) |
| Keystone to Castelsarrasin | 4,601.16 mi (7,404.86 km) |
| Keystone to Castres | 4,664.68 mi (7,507.08 km) |
| Keystone to Caudebec-les-Elbeuf | 4,496.96 mi (7,237.15 km) |
| Keystone to Caudry | 4,584.25 mi (7,377.64 km) |
