The planation surface of Mt Koryong is located in Ryongchon-ri, Sangwon County, North Hwanghae Province.
It formed from the Paleocene-Oligocene period to the early Miocene period. Later, it rose hundreds of metres high by the crustal upheavals, which started from the late Miocene period.
The planation surface at the mountainside is about 280 to 440 metres above sea level.
The Nam River is about 20 metres above sea level. The planation surface is 260-420 metres high from the water surface, which shows its height lifted by the crustal upheavals after its formation.
It sprawls over an area of about 3.4㎢. Its foundation consists of Hwangju group-layer carbonate rock.
There are many funnel-shaped hollows formed by brisk karst action in the area.
The karst hollows and basins are tens to hundreds of metres in diameter and 10 to 15 metres in depth.
The planation surface is dotted with heaps of gravels, which show the traces of the Taedong River in the earliest times.
As it stands higher than the Pyongyang peneplain, another spacious flatland, it is of great academic significance in studying the neotectonic movement, erosion by the Taedong River and the change of its watercourse, and the karst landform.
Kim Ye Ryong
More From Naenara (En)
Rural residential districts have been built at the Jungdok and Jungsang farms in Junggang County, Jagang Province, which are
November 09, 2025
Rural residential districts have been built at the Jungdok and Jungsang farms in Junggang County, Jagang Province, which are
The delegation of the Military-Political General Department of the Armed Forces of the Russian Federation headed by Director
November 09, 2025
The delegation of the Military-Political General Department of the Armed Forces of the Russian Federation headed by Director
The AI Technology Institute of the AI Faculty of Kim Il Sung University, the IT Institute of Kim Chaek University of Technology,
November 08, 2025
The AI Technology Institute of the AI Faculty of Kim Il Sung University, the IT Institute of Kim Chaek University of Technology,
No Kwang Chol, minister of National Defence of the Democratic People’s Republic of Korea, met and had a friendly talk with the
November 08, 2025
No Kwang Chol, minister of National Defence of the Democratic People’s Republic of Korea, met and had a friendly talk with the
Modern houses have been built in Yonsu-ri of Yonsa County, North Hamgyong Province, the DPRK. The dwelling houses were designed
November 08, 2025
Modern houses have been built in Yonsu-ri of Yonsa County, North Hamgyong Province, the DPRK. The dwelling houses were designed
Talks between the representatives of the General Political Bureau of the Korean People’s Army and the delegation of the
November 08, 2025
Talks between the representatives of the General Political Bureau of the Korean People’s Army and the delegation of the
A national exhibition and presentation of forest sci-tech achievements was held at the Central Botanical Garden from October 29 to
November 07, 2025
A national exhibition and presentation of forest sci-tech achievements was held at the Central Botanical Garden from October 29 to
The 27th national exhibition of sports sci-tech achievements and the national symposium on teaching methods in the field of
November 07, 2025
The 27th national exhibition of sports sci-tech achievements and the national symposium on teaching methods in the field of
A delegation of the Military-Political General Department of the Armed Forces of the Russian Federation headed by Director Viktor
November 07, 2025
A delegation of the Military-Political General Department of the Armed Forces of the Russian Federation headed by Director Viktor
The semi-finals between the DPRK team and the Brazilian team for the 2025 FIFA U-17 Women’s World Cup took place on November 5 (lo
November 07, 2025
The semi-finals between the DPRK team and the Brazilian team for the 2025 FIFA U-17 Women’s World Cup took place on November 5 (lo
A delegation of the Military-Political General Department of the Armed Forces of the Russian Federation headed by Director Viktor
November 07, 2025
A delegation of the Military-Political General Department of the Armed Forces of the Russian Federation headed by Director Viktor
A photo exhibition “The Wonsan Kalma Coastal Tourist Area, a magnificent world created on the east coast in the great era of Kim
November 06, 2025
A photo exhibition “The Wonsan Kalma Coastal Tourist Area, a magnificent world created on the east coast in the great era of Kim
Officials of the Party, power and armed forces organs, ministries and national agencies of the DPRK visited the bier of Kim Yong
November 06, 2025
Officials of the Party, power and armed forces organs, ministries and national agencies of the DPRK visited the bier of Kim Yong
The National Exhibition of Sci-tech Achievements in the Field of Public Health-2025 has opened with due ceremony at the Central
November 06, 2025
The National Exhibition of Sci-tech Achievements in the Field of Public Health-2025 has opened with due ceremony at the Central
The Pyongyang General Hospital opened in the DPRK on November 3. The medical workers and employees of the hospital are determined
November 05, 2025
The Pyongyang General Hospital opened in the DPRK on November 3. The medical workers and employees of the hospital are determined
DPRK players proved successful at the 14th Asian Acrobatic Gymnastics Championships held in India from October 31 to November 2.
November 05, 2025
DPRK players proved successful at the 14th Asian Acrobatic Gymnastics Championships held in India from October 31 to November 2.
New villages with unique architectural beauty have been built at the Nongpho Vegetable Farm in Chongjin City, North Hamgyong
November 05, 2025
New villages with unique architectural beauty have been built at the Nongpho Vegetable Farm in Chongjin City, North Hamgyong
The exhibition of intangible cultural heritage items-2025 closed with due ceremony at the Moranbong Youth Park on November 2.
November 04, 2025
The exhibition of intangible cultural heritage items-2025 closed with due ceremony at the Moranbong Youth Park on November 2.
The regional-industry factories, which have been built as the first entities of the implementation of the regional development
November 04, 2025
The regional-industry factories, which have been built as the first entities of the implementation of the regional development
Efforts are directed to developing physical acrobatics in the DPRK. In recent years, Korean physical stunts have won a variety of
November 04, 2025
Efforts are directed to developing physical acrobatics in the DPRK. In recent years, Korean physical stunts have won a variety of
More Articles
