Yushan is located at the junction of Donghai County, Jiangsu and Linyi County, Shandong Province. At an altitude of 269.5 meters, it is the highest peak in Donghai County. Yushan is about 3 kilometers long, and the north and south are1.5 kilometers wide. It is backed by Qilu and Yuan Huai Wuchu. It is a famous ancient mountain with a history.