Introduction to the Qingfeng Ancient Gate: After the Tonghui River was excavated, in order to control the water flow and facilitate boat navigation, 24 sluices were built on the main trunk line of the Tonghui River. There are 11 gate names from west to east, namely Guangyuan Gate, Xicheng Gate, Chaozong Gate, Haizi Gate, Wenming Gate, Weicun Gate, Jidong Gate, Jiaoting Gate, Yangyin Gate, Tongzhou Gate and Hemen Gate. According to the "History of the Yuan Dynasty", some of the gates were renamed in the first year of Yuanzhen. "The West City Gate was renamed Huichuan, Haizi Gate was renamed to clarify, Wenming Gate still used the old name, Weicun Gate was renamed Huihe, Jidong Gate was renamed Qingfeng, Jiaoting Gate was renamed Pingjin, Tongzhou Gate was renamed Tongliu, and Hemen Gate was renamed Qing Li, Yang Yinzha changed his name to Puji."