Introduction to the Pingyibao ruins: The Pingyibao ruins were built from the 15th year of Wanli in the Ming Dynasty (1587 AD) to the end of the Qing Dynasty. It is located on the hillside of Ejingxiang Mountain (also known as Wangxiang Terrace) in Xiangbi Village, Gong'an Township, on Erdaoping on the south bank of the intersection of Sancha River, Yanjing Creek and Longzhushan River. It is built according to the terrain, with a rounded rectangular plane, 110 meters long from north to south, 30 meters wide from east to west, and an area of 3,300 square meters. The wall is made of stones, with a height of 1-4.2 meters. The east wall is 104 meters long, the west wall is 134 meters long, the south wall is 3 meters long, the north wall is 26.4 meters long, and the total length is 294 meters; the gate site is 2.5 meters wide and has 8 passages. rice. There is another section of earth wall foundation in the south of the city, which is 7.25 meters long, 0.45 meters wide and 0.72 meters high. There is a "merit stele" in the city from the sixth year of Xianfeng, which is 1.23 meters high, 0.65 meters wide and 0.08 meters thick. The inscription provides that the Pingyi flood was set up and the Pingyi Fort was rebuilt in the 15th year of Daoguang's reign in the Qing Dynasty. In order to strengthen the resistance against the barbarians, the Pingyi Fort was built. Record the history and construction of Pingyi Fort.