| Tucson Mountains to Cividale del Friuli | 6,009.63 mi (9,671.57 km) |
| Tucson Mountains to Civita Castellana | 6,161.44 mi (9,915.88 km) |
| Tucson Mountains to Civitanova Marche | 6,158.83 mi (9,911.68 km) |
| Tucson Mountains to Civitavecchia | 6,148.92 mi (9,895.72 km) |
| Tucson Mountains to Civitella in Val di Chiana | 6,081.90 mi (9,787.88 km) |
| Tucson Mountains to Clusone | 5,901.02 mi (9,496.78 km) |
| Tucson Mountains to Coccaglio | 5,917.21 mi (9,522.82 km) |
| Tucson Mountains to Codigoro | 6,027.03 mi (9,699.56 km) |
| Tucson Mountains to Codogno | 5,926.68 mi (9,538.07 km) |
| Tucson Mountains to Codroipo | 6,001.18 mi (9,657.97 km) |
| Tucson Mountains to Cogoleto | 5,924.91 mi (9,535.21 km) |
| Tucson Mountains to Colle di Val d'Elsa | 6,061.82 mi (9,755.55 km) |
| Tucson Mountains to Colle Salvetti | 6,028.80 mi (9,702.42 km) |
| Tucson Mountains to Collecchio | 5,964.32 mi (9,598.65 km) |
| Tucson Mountains to Colleferro | 6,210.99 mi (9,995.62 km) |
