Jinsha River,conventional Kinsha Kiang, westernmost of the major headwater streams of the Yangtze River, Southwestern China. Jinsha River is the upstream river of Yangtze River. It originates from Mount Geladandong of Tanggula Mountains in Qinghai Province. It runs from Yushu Tibetan Autonomous Prefecture in Qinghai, through the border between Tibet and Sichuan, and runs to Yunnan province from Mangkang County. The river section in Tibet is 509 km long with drainage area of 23,060 square km.

The headwaters of Jinsah River rise in the Wulan and Kekexili (Hoh Xil) ranges in western Qinghai province, to the south of the Kunlun Mountains, and on the northern slope of the Tanggula (Dangla) Mountains on the border of the Tibet Autonomous Region. The three principal headwaters—the Chuma’er, Muluwusu, and Akedamu rivers—join to form the Tongtian River, which flows southeast to Zhimenda near the frontier between Qinghai and Sichuan provinces.

As the Jinsha River, it then flows south through a deep gorge parallel to the similar gorges of the upper Mekong and upper Salween rivers, from which it is separated by the Ningjing Mountains. It forms the western border of Sichuan for some 250 miles (400 km) and then flows into Yunnan province. After a large, 200-mile- (320-km-) long loop to the north of Dali Baizu Autonomous Prefecture, the Jinsha swings northeast, forming the Sichuan-Yunnan provincial boundary until it joins the Min River at Yibin in Sichuan to form the Yangtze.

The upper course of the river falls about 14 feet per mile (2.7 metres per km). Below Batang (Sichuan) the gradient gradually decreases to about 8 feet per mile (1.5 metres per km), but the Jinsha is unnavigable and in its upper course, through the gorges, is more of an obstacle than an aid to transportation.

 

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