| Mount Washington to Cibolo (Texas) | 931.85 mi (1,499.67 km) |
| Mount Washington to Cicero (Illinois) | 287.41 mi (462.55 km) |
| Mount Washington to Cimarron Hills (Colorado) | 1,035.53 mi (1,666.53 km) |
| Mount Washington to Cincinnati (Ohio) | 94.70 mi (152.40 km) |
| Mount Washington to Cinco Ranch (Texas) | 818.58 mi (1,317.37 km) |
| Mount Washington to Circleville (Ohio) | 177.70 mi (285.98 km) |
| Mount Washington to Citrus (California) | 1,816.55 mi (2,923.46 km) |
| Mount Washington to Citrus Heights (California) | 1,923.84 mi (3,096.11 km) |
| Mount Washington to Citrus Park (Florida) | 710.20 mi (1,142.95 km) |
| Mount Washington to Claiborne (Louisiana) | 533.58 mi (858.72 km) |
| Mount Washington to Claremont (California) | 1,806.89 mi (2,907.90 km) |
| Mount Washington to Claremont (New Hampshire) | 783.05 mi (1,260.19 km) |
| Mount Washington to Claremore (Oklahoma) | 565.92 mi (910.77 km) |
| Mount Washington to Clarksburg (Maryland) | 454.60 mi (731.61 km) |
| Mount Washington to Clarksburg (West Virginia) | 294.99 mi (474.73 km) |
