| Castle Rock to Carmona | 5,063.52 mi (8,148.95 km) |
| Castle Rock to Cartagena | 5,257.90 mi (8,461.77 km) |
| Castle Rock to Cartama | 5,139.14 mi (8,270.64 km) |
| Castle Rock to Cartaya | 5,004.49 mi (8,053.95 km) |
| Castle Rock to Caspe | 5,138.31 mi (8,269.30 km) |
| Castle Rock to Cassa de la Selva | 5,224.75 mi (8,408.43 km) |
| Castle Rock to Castalla | 5,227.32 mi (8,412.56 km) |
| Castle Rock to Castellbisbal | 5,208.11 mi (8,381.64 km) |
| Castle Rock to Castelldefels | 5,216.65 mi (8,395.39 km) |
| Castle Rock to Castello de Ampurias | 5,216.00 mi (8,394.34 km) |
| Castle Rock to Castellon de la Plana | 5,192.95 mi (8,357.25 km) |
| Castle Rock to Castilleja de la Cuesta | 5,048.76 mi (8,125.20 km) |
| Castle Rock to Catarroja | 5,203.10 mi (8,373.58 km) |
| Castle Rock to Catral | 5,240.85 mi (8,434.33 km) |
| Castle Rock to Caudete | 5,209.35 mi (8,383.64 km) |
