| Mountain Ash to Cicero (Illinois) | 3,823.98 mi (6,154.10 km) |
| Mountain Ash to Cimarron Hills (Colorado) | 4,600.17 mi (7,403.26 km) |
| Mountain Ash to Cincinnati (Ohio) | 3,820.14 mi (6,147.93 km) |
| Mountain Ash to Cinco Ranch (Texas) | 4,731.52 mi (7,614.65 km) |
| Mountain Ash to Circleville (Ohio) | 3,735.94 mi (6,012.41 km) |
| Mountain Ash to Citrus (California) | 5,311.49 mi (8,548.02 km) |
| Mountain Ash to Citrus Heights (California) | 5,160.81 mi (8,305.53 km) |
| Mountain Ash to Citrus Park (Florida) | 4,272.95 mi (6,876.65 km) |
| Mountain Ash to Claiborne (Louisiana) | 4,446.63 mi (7,156.16 km) |
| Mountain Ash to Claremont (California) | 5,305.17 mi (8,537.84 km) |
| Mountain Ash to Claremont (New Hampshire) | 3,145.04 mi (5,061.46 km) |
| Mountain Ash to Claremore (Oklahoma) | 4,391.85 mi (7,068.00 km) |
| Mountain Ash to Clarksburg (Maryland) | 3,523.13 mi (5,669.93 km) |
| Mountain Ash to Clarksburg (West Virginia) | 3,645.14 mi (5,866.28 km) |
| Mountain Ash to Clarksdale (Mississippi) | 4,299.05 mi (6,918.66 km) |
