The Tianping Reservoir (simplified Chinese: 田坪水库; traditional Chinese: 田坪水庫; pinyin: Tiánpíng Shuǐkù), also known as Qingshan Lake (Chinese: 青山湖), is a large reservoir located in the western part of Ningxiang, Hunan, China. It is the largest body of water in Ningxiang and the second largest reservoir in Ningxiang. The reservoir is the source of the Wei River. Created by damming some small rivers, the Tianping Reservoir has an area of 4.2 square kilometres (1,000 acres) and a capacity of 4,416 cubic metres (0.001167×109 US gal).