| Mountain Ash to Clarkston (Georgia) | 4,060.90 mi (6,535.39 km) |
| Mountain Ash to Clarksville (Indiana) | 3,908.53 mi (6,290.17 km) |
| Mountain Ash to Clarksville (Tennessee) | 4,054.36 mi (6,524.87 km) |
| Mountain Ash to Clawson (Michigan) | 3,613.45 mi (5,815.29 km) |
| Mountain Ash to Clay (Alabama) | 4,163.51 mi (6,700.53 km) |
| Mountain Ash to Clayton (California) | 5,223.49 mi (8,406.39 km) |
| Mountain Ash to Clayton (Missouri) | 4,073.39 mi (6,555.48 km) |
| Mountain Ash to Clayton (North Carolina) | 3,734.08 mi (6,009.42 km) |
| Mountain Ash to Clayton (Ohio) | 3,779.71 mi (6,082.86 km) |
| Mountain Ash to Clearfield (Utah) | 4,733.22 mi (7,617.38 km) |
| Mountain Ash to Clearlake (California) | 5,186.58 mi (8,346.99 km) |
| Mountain Ash to Clearwater (Florida) | 4,286.05 mi (6,897.74 km) |
| Mountain Ash to Cleburne (Texas) | 4,662.30 mi (7,503.24 km) |
| Mountain Ash to Clemmons (North Carolina) | 3,796.88 mi (6,110.48 km) |
| Mountain Ash to Clemson (South Carolina) | 3,960.38 mi (6,373.61 km) |
