| Sierra Vista Southeast to Cividale del Friuli | 6,027.47 mi (9,700.28 km) |
| Sierra Vista Southeast to Civita Castellana | 6,175.08 mi (9,937.84 km) |
| Sierra Vista Southeast to Civitanova Marche | 6,174.30 mi (9,936.58 km) |
| Sierra Vista Southeast to Civitavecchia | 6,161.96 mi (9,916.72 km) |
| Sierra Vista Southeast to Civitella in Val di Chiana | 6,096.13 mi (9,810.78 km) |
| Sierra Vista Southeast to Clusone | 5,916.46 mi (9,521.63 km) |
| Sierra Vista Southeast to Coccaglio | 5,932.36 mi (9,547.20 km) |
| Sierra Vista Southeast to Codigoro | 6,042.85 mi (9,725.02 km) |
| Sierra Vista Southeast to Codogno | 5,941.27 mi (9,561.55 km) |
| Sierra Vista Southeast to Codroipo | 6,018.61 mi (9,686.01 km) |
| Sierra Vista Southeast to Cogoleto | 5,938.08 mi (9,556.42 km) |
| Sierra Vista Southeast to Colle di Val d'Elsa | 6,075.65 mi (9,777.81 km) |
| Sierra Vista Southeast to Colle Salvetti | 6,042.39 mi (9,724.29 km) |
| Sierra Vista Southeast to Collecchio | 5,978.84 mi (9,622.02 km) |
| Sierra Vista Southeast to Colleferro | 6,224.53 mi (10,017.41 km) |
