| Box Elder to Carmona | 4,804.80 mi (7,732.58 km) |
| Box Elder to Cartagena | 4,989.52 mi (8,029.85 km) |
| Box Elder to Cartama | 4,880.74 mi (7,854.79 km) |
| Box Elder to Cartaya | 4,749.44 mi (7,643.49 km) |
| Box Elder to Caspe | 4,858.13 mi (7,818.41 km) |
| Box Elder to Cassa de la Selva | 4,938.00 mi (7,946.94 km) |
| Box Elder to Castalla | 4,955.52 mi (7,975.14 km) |
| Box Elder to Castellbisbal | 4,923.87 mi (7,924.20 km) |
| Box Elder to Castelldefels | 4,932.92 mi (7,938.77 km) |
| Box Elder to Castello de Ampurias | 4,928.01 mi (7,930.86 km) |
| Box Elder to Castellon de la Plana | 4,916.15 mi (7,911.78 km) |
| Box Elder to Castilleja de la Cuesta | 4,791.15 mi (7,710.61 km) |
| Box Elder to Catarroja | 4,928.56 mi (7,931.75 km) |
| Box Elder to Catral | 4,970.53 mi (7,999.30 km) |
| Box Elder to Caudete | 4,937.85 mi (7,946.70 km) |
