The Con Moong cave (Vietnamese Hang Con Moong, "beast" cave) is located in the Cúc Phương National Park, just south of Mọ village, in the Thanh Hóa Province, northern Vietnam. The Cúc Phương National Park administration not only manages a refuge for rare animals. The Department of Culture has also issued a certificate, that declares Con Moong prehistoric site and its surroundings as National Relics. Among these locations, the archaeological site of Con Moong cave is of central importance for the study of the Mesolithic Hoabinhian culture. In April and May 1976 Vietnamese archaeologists have excavated the site.