 This source was only discovered in the late 20th century and lies in wetlands at and above sea level just southeast of Chadan Township in Zadoi County, Yushu Prefecture, Qinghai.As the historical spiritual source of the Yangtze, the Geladandong source is still commonly referred to as the source of the Yangtze since the discovery of the Jari Hill source.These tributaries join and the river then runs eastward through Qinghai (Tsinghai), turning southward down a deep valley at the border of Sichuan (Szechwan) and Tibet to reach Yunnan.