Hyon Ni AirportHyon Ni Airport is an airport near Hyŏl-li in Hoeyang-gun, Kangwon-do, North Korea. located 17 km southwest of Hoeyang-up.FacilitiesThe airfield has a single concrete runway 02/20 measuring 8870 x 154 feet. It is sited in a valley and has a full-length parallel taxiway, as well as other taxiways leading to dispersed stands and at least 4 underground shelters.