Yangtze River (China): Topic PageLongest river of China and Asia, and third longest in the world, flowing about 6,300 km/3,900 mi from Qinghai on the Tibetan Plateau to the Yellow Sea. It is a major commercial waterway and, with its tributaries, is navigable for 30,000 km/18,640 mi; Yichang is considered the head of navigation, but ocean-going vessels can reach inland as far as Wuhan.