sentences:  It is bordered by Sŏngch'ŏn-gun (Songchon County), South P'yongan in the north and east, Sŭngho-guyŏk (Sungho District) from the south and the Taedong River from the west.Kangdong-gun is best known as the location of the supposed Tomb of King Tangun, the Revolutionary Site at Ponghwa-ri.Kim Jong-un's Kangdong Residence is located near the banks of Taedong River.