Calculate route from Hongwŏn-yŏk (Hamgyŏng-namdo, North Korea) to Kosan (Kangwŏn-do, North Korea).
The flight distance (as the crow flies) between Hongwŏn-yŏk and Kosan is 137.8 km.
Roadmap (route) to go from Hongwŏn-yŏk to Kosan detailed above, you can also see the course layout on the map.
While doing trip Hongwŏn-yŏk - Kosan by car, the calculated route ends at a distance , or more straight.