The hinterland of the solitary bamboo country is at the confluence of Luanhe River and qinglong river, that is, the junction of Qian 'an City, lulong county City and Luanxian County. The whole territory of the solitary bamboo country is much wider than this. The heyday of the solitary bamboo kingdom was in the Shang Dynasty, which generally included most of Tangshan City in the northeast of Hebei Province, Qinhuangdao City and the west of Liaoning Province.