The Komdok Fold is a natural monument in Tanchon City of South Hamgyong Province.

The structure of the Kimdok Fold is complex. In Juche 49(1960), it was made clear that the structure has manifold layers. The discovery is of great significance from an academic point of view. A foreign geologist surveyed the Komdok Fold on the spot and expressed his admiration, saying: “I have visited different countries of the world, but it is for the first time for me to see this kind of fold structure”. The Komdok Fold has a mineral-containing structure containing lead and zinc ore and is of great economic and academic value.