The Yaohongzuizi and Beihongzuizi sites excavated in May-August 1994 belong to the Neolithic and Bronze ages. Their Neolithic remains are of the same type, featuring principally cylindrical jars with impressed and incised bow string and zigzag patterns. As regards Bronze Age remains, the vestiges of Yaohongzuizi yielded mainly plain ding tripods, li tripods and jars, while those of Beihongzuizi, large-sized ding, li and jars with incised short lines along the rim and incised nets on the belly. The discovery of the two sites being at a short distance and belonging to the same two ages is of great significance to studying the cultural sequence of the Neolithic and Bronze ages in the Jilin region.
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.
