2. The Yangtze River originates from the "roof of the world"-the southwest side of Gladden Peak in Tanggula Mountain of Qinghai-Tibet Plateau. The main stream flows through Qinghai, Xizang Autonomous Region, Sichuan, Yunnan, Chongqing, Hubei, Hunan, Jiangxi, Anhui, Jiangsu and Shanghai * * *1/provincial administrative regions.
3. It flows into the East China Sea east of Chongming Island, with a total length of more than 6,300 kilometers, ranking third in the world after the Nile River in Africa and the Amazon River in South America.