Introduction to Liyu Mountain: Liyu Mountain is located in the center of Shanxi Town. The mountain is shaped like a carp and lies alone by the Feiyun River. It covers an area of ​​3,000 square meters. Stone knives, stone axes, stone arrowheads, etc. made of natural bluestone and gravel slightly beaten were found, which are relics of the early Neolithic Piedmont Culture period.