Pangong Tso (or Pangong lake; Tso: Ladakhi for lake) is a lake in the Himalayas situated at a height of about 4250 m (13,900 ft). It is 134 km (83.3 mi) long and extends from India to Tibet. Two thirds of the length of this lake falls in the People's Republic of China. It is 5 km (3 mi) wide at its broadest point. In winter, the lake surface freezes completely despite being salt water.Pangong Tso can be reached in a five-hour drive from Leh, most of it on a rough and dramatic mountain road. The road traverses the third-highest pass in the world, the Changla pass.
The brackish water of the lake is devoid of any micro-vegetation. There are some species of scrub and perennial herbs that grow in the marshes around the lake. The lake acts as an important breeding ground for a variety of birds including a number of migratory birds. The region around the lake supports a number of species of wildlife including the kiang.