Komunmoru Site is the cave relics belonging to the former term of the Palaeolithic Age. It is the earliest of the relics of the Palaeolithic Age which have been so far known in Korea.
It is found in Hugu-ri, Sangwon County of North Hwanghae Province. It was unearthed and surveyed between Juche 55(1966) and Juche 57(1968). Discovered in the site were various forms of the rude stone implements including the knuckle axe-shaped one. The knuckle axe-shaped stone implement was named so as it is similar to the knuckle axe, a typical stone implement of the relics belonging to the former term of the Palaeolithic Age. The knuckle axe-shaped stone implement which does not take a certain form like the knuckle axe shows well the long history of the Komunmoru Site.
29 species of fossil animals were discovered in the site. The fauna in the site shows that the weather was much hotter and damper and had thicker forest in this area one million years ago.
The Komunmoru Site belonging to the dawn of the human society proves that humans lived in Korea from the beginning of the birth of mankind.