| Prairie Ridge to Cividale del Friuli | 5,456.00 mi (8,780.59 km) |
| Prairie Ridge to Civita Castellana | 5,660.83 mi (9,110.23 km) |
| Prairie Ridge to Civitanova Marche | 5,632.62 mi (9,064.83 km) |
| Prairie Ridge to Civitavecchia | 5,657.26 mi (9,104.48 km) |
| Prairie Ridge to Civitella in Val di Chiana | 5,576.16 mi (8,973.96 km) |
| Prairie Ridge to Clusone | 5,385.24 mi (8,666.71 km) |
| Prairie Ridge to Coccaglio | 5,404.89 mi (8,698.32 km) |
| Prairie Ridge to Codigoro | 5,501.02 mi (8,853.03 km) |
| Prairie Ridge to Codogno | 5,421.90 mi (8,725.71 km) |
| Prairie Ridge to Codroipo | 5,453.69 mi (8,776.87 km) |
| Prairie Ridge to Cogoleto | 5,440.28 mi (8,755.28 km) |
| Prairie Ridge to Colle di Val d'Elsa | 5,562.53 mi (8,952.03 km) |
| Prairie Ridge to Colle Salvetti | 5,534.15 mi (8,906.35 km) |
| Prairie Ridge to Collecchio | 5,459.07 mi (8,785.52 km) |
| Prairie Ridge to Colleferro | 5,709.96 mi (9,189.29 km) |
