The relics were discovered in a fallen cave in Tongam-dong, Sunchon City, South Phyongan Province, which is located in the breast of a hill 40 meters high above the sea level.

They include 14 pieces of stone tools, 8 pieces of bone tools, 5,000 pieces of fossil mammal bones and 1,094 pieces of fossil spore and pollen. Typical of them are stone axe and fossil bone of Trogontherium cf. cuvier.

The Tongam-dong Relics are divided into the two cultural layers, which were ascertained to be formed about 880,000 years and 720,000 years ago.

The relics prove that mankind has inhabited in the territory of Korea from the early Paleolithic Age ago.