High Quality Content by WIKIPEDIA articles! Sandouping is a town in Yiling District of Yichang prefecture-level city in the Chinese province of Hubei. It is located on the right (southern) bank of the Yangtze River, next to Yiling District`s border with Zigui County to the west. Sandouping is best known as the location of the Three Gorges Dam which is the world`s largest electricity-generating plant of any kind.