Hengduan Mountains
The Yun Range () are a mountain range running north–south in northwestern Yunnan province, China. They were formerly romanized as the Yun Ling and tautologically as the Yun-ling Mountains. The Yun Range runs between the Lancang River (Mekong) to the west and Jinsha River (Yangtze) to the east. The range is a major component of the greater Hengduan Mountains.