| Grass Valley to Clarksdale (Mississippi) | 1,715.37 mi (2,760.62 km) |
| Grass Valley to Clarkston (Georgia) | 2,063.48 mi (3,320.84 km) |
| Grass Valley to Clarksville (Indiana) | 1,889.65 mi (3,041.09 km) |
| Grass Valley to Clarksville (Tennessee) | 1,836.53 mi (2,955.61 km) |
| Grass Valley to Clawson (Michigan) | 1,976.57 mi (3,180.98 km) |
| Grass Valley to Clay (Alabama) | 1,939.62 mi (3,121.52 km) |
| Grass Valley to Clayton (California) | 100.55 mi (161.83 km) |
| Grass Valley to Clayton (Missouri) | 1,643.69 mi (2,645.27 km) |
| Grass Valley to Clayton (North Carolina) | 2,328.55 mi (3,747.44 km) |
| Grass Valley to Clayton (Ohio) | 1,943.14 mi (3,127.19 km) |
| Grass Valley to Clearfield (Utah) | 493.82 mi (794.72 km) |
| Grass Valley to Clearlake (California) | 86.72 mi (139.57 km) |
| Grass Valley to Clearwater (Florida) | 2,316.42 mi (3,727.92 km) |
| Grass Valley to Cleburne (Texas) | 1,402.19 mi (2,256.60 km) |
| Grass Valley to Clemmons (North Carolina) | 2,217.56 mi (3,568.82 km) |
