The tomb four meters in length and two meters in width was found in a cave in Ransan-ri, Kangdong County, Pyongyang. Found inside it were 260 bones considered to be those of nine persons, 22 earthenware pieces, 1 personal ornament, 2 knives made of clams and 80 animal bones.

Through the analysis of the bones, the research group ascertained in unison that they are bones of Koreans in the New Stone Age.

Earthenware pieces were scientifically proved that they belong to the end of the middle period of the New Stone Age.

Bones of Koreans belonging to the New Stone Age were found in the basin of the Taedong River in the past but it is the first time that bones of so many people were found in just one site.

The research group proved that the site is a tomb, not a place where peopled led their living.

The discovery is of a great significance in making a scientific and theoretical study of the anthropological features of Koreans who created the culture of the New Stone Age in the basin of Taedong River with Pyongyang as its center, the type of their tombs, funeral rites and burial manners of them and the Culture of Taedong River.