Yuan River
The Yuan River (Chinese: 沅江; pinyin: Yuánjiāng or Chinese: 沅水; pinyin: Yuánshuǐ) is one of the four largest rivers in Hunan province in southeast-central China, and is a tributary of Yangtze River.
It is 864 km (537 miles) long and rises in Guizhou province in the Miao Mountains near Tu-yün and is navigable. The upper stream is called the Lung-t'ou River, and downstream it is called the Ch'ing-shui River. It becomes the Yüan River after its confluence with its northern tributary, the Wu River.
Location coordinates: 28°25′37″N 110°22′49″E / 28.42694°N 110.38028°E