| Mountain Ash to Carlsbad (New Mexico) | 4,921.48 mi (7,920.36 km) |
| Mountain Ash to Carmel (Indiana) | 3,847.27 mi (6,191.59 km) |
| Mountain Ash to Carmichael (California) | 5,165.57 mi (8,313.18 km) |
| Mountain Ash to Carney (Maryland) | 3,484.67 mi (5,608.03 km) |
| Mountain Ash to Carnot-Moon (Pennsylvania) | 3,585.83 mi (5,770.83 km) |
| Mountain Ash to Carol Stream (Illinois) | 3,834.93 mi (6,171.73 km) |
| Mountain Ash to Carolina (Puerto Rico) | 4,060.66 mi (6,535.01 km) |
| Mountain Ash to Carolina Forest (South Carolina) | 3,842.28 mi (6,183.56 km) |
| Mountain Ash to Carpentersville (Illinois) | 3,831.69 mi (6,166.51 km) |
| Mountain Ash to Carpinteria (California) | 5,348.92 mi (8,608.26 km) |
| Mountain Ash to Carrboro (North Carolina) | 3,748.15 mi (6,032.06 km) |
| Mountain Ash to Carroll (Iowa) | 4,082.39 mi (6,569.97 km) |
| Mountain Ash to Carrollton (Georgia) | 4,106.65 mi (6,609.02 km) |
| Mountain Ash to Carrollton (Texas) | 4,609.81 mi (7,418.77 km) |
| Mountain Ash to Carrollwood (Florida) | 4,271.70 mi (6,874.63 km) |
