WadeGiles romanization Han Shui, Pinyin Han Shui, one of the most important tributaries of the Yangtze River of China. It has a total length of about 952 mi (1,532 km). The Han Shui rises in the Shen-ch'iung Shan (mountains), part of the Mi-t'sang Shan in the north of Ning-ch'iang County in the extreme southwest of Shensi Province. Its upper stream is known successively as the Yü-tai Ho, the Yang Shui, and, below Mien-hsien, the Mien Shui. At Han-chung