body of Liao River system. Therefore since 1958, the Hun and Taizi River were considered an independent river system of their own, no longer being tributaries of the Liao River. Taizi River (, "crown prince river"), historically also known as Yan River (衍水) or Liang River (梁水), was named according to the legend that it was the last site of refuge for Crown Prince Dan of Yan, who was fleeing from Qin conquest after the failed assassination attempt on the King of Qin. It was formerly the third largest tributary of the Liao River, running and draining a basin of . The Taizi River, like the Hun River running parallel north of it, flows through some of the most important agricultural and industrial regions of southern Liaoning, including the cities of Benxi, Anshan and Liaoyang. Like its sister river, the Hun River, the Taizi River has numerous tributaries, including two largest ones of which it is formed from the confluence. Its headwaters arise from hill regions between Benxi and Fushun, and contains the famous Benxi Water Caves. Like Hun River, the Taizi River is no longer a tributary of Liao River since the obliteration of upstream Wailiao River in 1958. See also North China Plain Loess Plateau List of rivers of Asia List of rivers in China References Rivers of Liaoning Rivers of Jilin Rivers of Inner Mongolia Rivers of Hebei