Located in Cangzhou City, 20 km east Cangxian old Zhou Zhen. City area of about 430 million square meters, the width of the old city wall is 40 meters measured the circumference of 7,787 meters. Western Han emperor was established in five years (before 202), that is the county seat floating yang.

Old walls have been mutilated, only the west and south sides there Duanqiang five sections. There are old iron lion, iron money bank (all chongning unearthed Qian, Grand View, governance, public awareness, and reign, etc.), furnace and Kaiyuan Temple ruins of ancient buildings, underground and the rich cultural relics. Old chow has been named the Lion City, wau city. Now included in the provincial key cultural relics protection units.