| Mount Washington to Busto Arsizio | 4,597.70 mi (7,399.28 km) |
| Mount Washington to Busto Garolfo | 4,601.44 mi (7,405.30 km) |
| Mount Washington to Cabras | 4,792.23 mi (7,712.34 km) |
| Mount Washington to Cadelbosco di Sopra | 4,700.82 mi (7,565.24 km) |
| Mount Washington to Cadoneghe | 4,730.08 mi (7,612.33 km) |
| Mount Washington to Cagli | 4,831.86 mi (7,776.13 km) |
| Mount Washington to Cagliari | 4,844.65 mi (7,796.71 km) |
| Mount Washington to Cairo Montenotte | 4,616.63 mi (7,429.74 km) |
| Mount Washington to Caivano | 5,003.54 mi (8,052.42 km) |
| Mount Washington to Calcinaia | 4,741.84 mi (7,631.25 km) |
| Mount Washington to Calcinato | 4,667.69 mi (7,511.92 km) |
| Mount Washington to Calderara di Reno | 4,735.86 mi (7,621.63 km) |
| Mount Washington to Caldogno | 4,706.61 mi (7,574.55 km) |
| Mount Washington to Calenzano | 4,757.99 mi (7,657.25 km) |
| Mount Washington to Calolziocorte | 4,614.94 mi (7,427.03 km) |
