Yuecheng Lake is located between Zhangren Peak and Qinglonggang. The ghost city mountain under the Zhangren Peak is also known as Yuecheng Mountain. The lake is named after the mountain. Qingxi, which was originally sourced from Gaotai Mountain, enters the open mountain valley here. According to legend, the reign of Emperor Xuanyuan Huangdi and the head of the Eight Immortals in Suizhong, the remnant of the Guishan Ghost Valley, and the fifth generation of Meng Yu, the immortal Liu Haizhen also practiced here.