According to the archaeological discovery of the site of Qinglongquan in Yunxian County, its civilization can be traced back to the Neolithic Age. It belonged to Chu Kingdom before the Qin Dynasty (221BC-206BC) set up county in the area, and the successive dynasties continued to follow this administrative division. It gained its present name in Qing Dynasty (1644-1911) for the ten dams built to help irrigation. Enjoying a subtropical continental monsoon climate, Shiyan is warmer in winter and hotter in summer than other places at the same latitudes. June to August concentrates most of the rainfall and heat of a year. Spring and autumn are the best seasons to visit Shiyan. Wudang Mountains: Located in the northwest of Danjiangkou City, the Wudang Mountains is one of the most distinguished Taoist mountains in China.