Gaoyou Lake
 Gaoyou Lake（Chinese: 高邮湖; pinyin: Gāoyòu Hú）is the sixth largest freshwater lake in China it is located between Anhui Province and Jiangsu Province. In a sense Gaoyou Lake is a manmade lake and its creation is part of a long story about flood control and hydraulic engineering in ancient China. Gaoyou Lake is now part of the Huai River system as the Huai River flows south through Gaoyou Lake on its way to the Yangtze River and the Pacific.