Introduction to Yanfenquan: Roufenquan, also known as Sister Spring, when the king of the year came here with his two most caring concubines, they shared the joys and sorrows with the people and were determined to restore the country. In this difficult environment, the two The concubines were required to farm and weave by themselves, and come to this spring to fetch water for washing themselves every day. The two concubines were named Yan Ru and Si Fen, so the local residents gave this spring a beautiful name - Yan Fen Spring.