Tongtian River

A 1975 DMA map of the area around the Tongtian River ("T'ung-t'ien Ho")

The Tongtian River (Chinese: 通天河, Tōngtiān Hé) or Zhi Qu (Tibetan) is a 1,012 km (629 mi) long river in Qinghai Province in western China. It begins at the confluence of the Ulan Moron and Dangqu rivers, before flowing southeast and meeting the Jinsha River near the border of Qinghai and Sichuan. It is part of the Yangtze River drainage basin.