| Mount Washington to Carrollwood (Florida) | 711.90 mi (1,145.70 km) |
| Mount Washington to Carson (California) | 1,842.55 mi (2,965.29 km) |
| Mount Washington to Carson City (Nevada) | 1,837.03 mi (2,956.41 km) |
| Mount Washington to Carteret (New Jersey) | 629.92 mi (1,013.76 km) |
| Mount Washington to Cartersville (Georgia) | 271.27 mi (436.57 km) |
| Mount Washington to Carthage (Missouri) | 483.73 mi (778.48 km) |
| Mount Washington to Cary (Illinois) | 321.31 mi (517.10 km) |
| Mount Washington to Cary (North Carolina) | 403.43 mi (649.27 km) |
| Mount Washington to Casa de Oro-Mount Helix (California) | 1,797.37 mi (2,892.59 km) |
| Mount Washington to Casa Grande (Arizona) | 1,511.24 mi (2,432.10 km) |
| Mount Washington to Casas Adobes (Arizona) | 1,485.09 mi (2,390.02 km) |
| Mount Washington to Cascades (Virginia) | 446.63 mi (718.78 km) |
| Mount Washington to Casper (Wyoming) | 1,137.78 mi (1,831.08 km) |
| Mount Washington to Casselberry (Florida) | 692.43 mi (1,114.36 km) |
| Mount Washington to Castaic (California) | 1,849.25 mi (2,976.08 km) |
