Liu's Canyon in Yangzhou County, Gansu Province, January 1, 1960, Yellow River Liu's Canyon water hub project victory intersection (located at the upper river of Lanzhou 100 km), the dam intersection, can form an area of more than 130 square kilometers of water reservoir, water storage of 5.7 billion cubic meters, irrigation of more than 1.5 million acres of agricultural land. The hub project was started in September 1958, the construction of the first hydroelectric power plant power generation unit in 1969, the construction of Liu's Canyon power station in the end of 1974, mainly power generation, as well as flood prevention, irrigation, pollution, cultivation and other comprehensive benefits.

The dam (main dam) is 147 meters high, causing the flow of the yellow river to fall 100 meters.