| Grass Valley to Cordele (Georgia) | 2,138.14 mi (3,441.01 km) |
| Grass Valley to Corinth (Mississippi) | 1,807.67 mi (2,909.16 km) |
| Grass Valley to Corinth (Texas) | 1,397.10 mi (2,248.41 km) |
| Grass Valley to Cornelius (North Carolina) | 2,203.54 mi (3,546.25 km) |
| Grass Valley to Cornelius (Oregon) | 446.71 mi (718.91 km) |
| Grass Valley to Corning (New York) | 2,288.40 mi (3,682.83 km) |
| Grass Valley to Corona (California) | 417.93 mi (672.59 km) |
| Grass Valley to Coronado (California) | 502.61 mi (808.88 km) |
| Grass Valley to Corpus Christi (Texas) | 1,571.73 mi (2,529.46 km) |
| Grass Valley to Corsicana (Texas) | 1,460.27 mi (2,350.07 km) |
| Grass Valley to Cortland (New York) | 2,327.17 mi (3,745.22 km) |
| Grass Valley to Corvallis (Oregon) | 386.66 mi (622.27 km) |
| Grass Valley to Coshocton (Ohio) | 2,066.94 mi (3,326.41 km) |
| Grass Valley to Costa Mesa (California) | 421.65 mi (678.58 km) |
| Grass Valley to Coto de Caza (California) | 433.90 mi (698.30 km) |
