Three Gorges assisted Yu the Great in controling the waters and guiding boatmen. The Xiling Gorge comprises a series of famous gorges, including Military Book and Sword Gorge, Yellow Cow Gorge, and Lantern's Shadow Gorge. In 1919, after Sun Yat-sen had put forward the concept in the Plan for Industrial Development of his (), experts investigated damming the Three Gorges, but it was not until 1994 that the Three Gorges project officially started. In 1944, the Nationalist government recruited John L. Savage, the Chief Engineer of the United States Bureau of Reclamation, who came to China and made a 10-day investigation of
Three Gorges of Hubei Province (), in the middle of Xiling Gorge. On May 20, 2006, the reservoir dam was completed, and the water level quickly reached the initial level of above the downstream river. The project was completed by the end of 2008, with a ship lift completed in 2015. The dam and Three Gorges Reservoir has had a massive impact on the region's ecology and people, involving the mass relocation of towns and villages. The higher water level has changed the scenery of the Three Gorges so that the river is wider and the mountains appear lower. However, the mountains