The Yayangshan Dam (崖羊山大坝) is a concrete-face rock-fill dam on the Lixian River, bordering the counties of Ning'er and Mojiang in Yunnan Province, China. It is located 56 km (35 mi) from Pu'er City. The primary purpose of the dam is hydroelectric power generation and it supports a 120 MW power station. Construction began in 2003, the river was diverted in 2004 and the two 60 MW generators were commissioned in 2006. It is the first dam in the Lixian River cascade.