The ancient mining site of Jinniudong is located in Fenghuang Village, Xinqiao Township, Tongling County, with an ancient cave on the mountainside. It is the second ancient copper site officially opened to the outside world after the ancient copper site of Tonglushan. The ancient copper mining site of Jinniu Cave is rich in remains and spectacular. It has been listed as a provincial cultural relics protection unit and recommended as a key national cultural relics protection unit. There is a beautiful legend in folk legend, and the surrounding scenery is beautiful.