Хамгён-Пукто
Mantapsan (or Mount Mant'ap, Chosŏn'gŭl: ) is a mountain in the south of North Hamgyong Province in North Korea. The granite peak, which reaches an elevation of , is part of the Hamgyong Mountains. It is located on the border between Kilju County, Myŏnggan County and Orang County.