The Three Gorges Project on the Yangtze River, referred to as the Three Gorges Project, is a large-scale water conservancy project constructed in the middle and upper reaches of the Yangtze River in China. Distributed on the main stream of the Yangtze River from Chongqing, China to Yichang, Hubei Province, the dam is located in Sandouping, Yiling District, Yichang City, within the Xiling Gorge of the Three Gorges. It forms a cascade dispatching power station with the Gezhouba Hydropower Station not far downstream. It is the largest hydropower station in the world and the largest engineering project ever built in China.
In order to monitor the earthquake induced by the reservoir, 24 seismic observation stations were built along the coast of the Three Gorges, and all the data were collected at the mouth of the Bahe River.