In May-July 2001, the Jilin Provincial Institute of Cultural Relics and Archaeology surveyed the Gangouzi cemetery in Changbai County and excavated there seven tombs. These are stone burial pits each with several or dozen circular, semicircular or fan-like platforms structured of pebbles and connected with each other. They contain secondary burials after cremation. Human bones are largely broken. The funeral objects consist of pottery, jade and stone artifacts and bronzes. The excavation is of important value to studying the origin of the tomb shape prevailing among the Kaoguryo people.
