Located in the northwest of Heilin Town, with an area of 7 square kilometers and an altitude of 364.5 meters, it is the second highest peak in Jiangsu Province. It is composed of many mountain heads such as Dawu Mountain and Xiaowu Mountain. Buddhism and Taoism have built temples here to serve, so there are 99 Xianju sites of Xuanyang Temple "Taishan Palace".