| Tamalpais-Homestead Valley to Cividale del Friuli | 6,024.70 mi (9,695.82 km) |
| Tamalpais-Homestead Valley to Civita Castellana | 6,215.46 mi (10,002.82 km) |
| Tamalpais-Homestead Valley to Civitanova Marche | 6,194.68 mi (9,969.37 km) |
| Tamalpais-Homestead Valley to Civitavecchia | 6,209.14 mi (9,992.64 km) |
| Tamalpais-Homestead Valley to Civitella in Val di Chiana | 6,131.69 mi (9,868.00 km) |
| Tamalpais-Homestead Valley to Clusone | 5,942.31 mi (9,563.23 km) |
| Tamalpais-Homestead Valley to Coccaglio | 5,961.07 mi (9,593.42 km) |
| Tamalpais-Homestead Valley to Codigoro | 6,062.02 mi (9,755.89 km) |
| Tamalpais-Homestead Valley to Codogno | 5,975.93 mi (9,617.34 km) |
| Tamalpais-Homestead Valley to Codroipo | 6,020.62 mi (9,689.24 km) |
| Tamalpais-Homestead Valley to Cogoleto | 5,988.26 mi (9,637.17 km) |
| Tamalpais-Homestead Valley to Colle di Val d'Elsa | 6,116.00 mi (9,842.74 km) |
| Tamalpais-Homestead Valley to Colle Salvetti | 6,085.98 mi (9,794.43 km) |
| Tamalpais-Homestead Valley to Collecchio | 6,013.54 mi (9,677.85 km) |
| Tamalpais-Homestead Valley to Colleferro | 6,265.10 mi (10,082.70 km) |
