In the Ming Dynasty, this is the place to play. "Ming Yitongzhi" states: "Yuyuantan is in the west of the government, Yuanshi County people Ding's old pool, Liudi surrounded, the scenery is small, the sand birds and water birds are more Xiangji, for the place to visit the beautiful beauty." Because of the low-lying terrain, the mountains and rivers in the west mountains accumulate here.