In front of Fuchengmen, east to West Diaoyutai, 3rd Ring Rd, the thing grows about 1.7 kilometers, covers an area of 137 hectares, of which half of the water, the lake ripples. Trees. For the suburb of Beijing is one of the larger park. " Ming Zhi unification " contains: " Yuyuantan West in the palace, Yuan county people - the pool, surrounded by willow embankment, boom Xiao Shuang, bird birds more Xiangji sand which, as the tourism pageant. " Because here relief is low-lying, Nishiyama area landscape the plot in this. Qing emperor Qian Long thirty-eight years ( 1773) Jun governance into Lake, the new approach of water by. In the next build floodgate, so information storage and discharge water, and by the Three Mile River river of Fuchengmen city moat. East built a palace. After the lake silted up, overgrown with weeds. After the liberation, with the Yongding River Diversion Project, in the old Hunan dug around a 10 hectare lake, like a gourd, eight one lake. Downstream has built a experimental hydropower station. New and old two ends can be connected the East and West Lake, diversion, and holds water in Miyun Reservoir .1960 years after the construction, water diversion project at the southern end, from Lake Kunming to the diversion canal in Yuyuantan, Rodolfo village and Yongding river diversion canal department, with the Yuyuantan flow into the moat. In recent years vigorously construction of the park, built the road in the park, built a veranda scenery building, gradually rich contains. Yuyuantan is not only pleasant scenery, beautiful environment, lush trees, into the western suburbs of summer, swimming, boating cool places; and in Beijing water conservancy project plays a diversion, flood effect.