Introduction to the scenic spot: In the ninth year of Yongle (1411), Zongli, the minister of the Ministry of Industry, adopted the suggestion of Bai Ying, an expert on water control in Wenshang, to break the city dam in the upper reaches, build a dam here to cut off the Wenshui River, and cut off the Wenshui River to flow into Xiaowen Henan It flows to Wenshang Nanwang and flows into the canal, "Yijiyun Road", which became the main project to divert Wenjiyun at that time, allowing ships to sail unimpeded.