The photo shows the Taocha Canal Headwork, the canal headwork of the central route of the South-to-North Water Diversion Project. Located in Taocha village of China's Henan province, the Taocha Canal Headwork is the auxiliary dam of the Danjiangkou Reservoir and the "water tap" of the project to deliver water to northern China's Beijing-Tianjin-Hebei region. [Photo/China.org.cn]