or Pangong Lake
is an endorheic lake spanning eastern Ladakh and West Tibet situated at an elevation of 4,225 m (13,862 ft). It is 134 km (83 mi) long and divided into five sublakes, called Pangong Tso
, Tso Nyak
, Rum Tso
and Nyak Tso
. Approximately 50% of the length of the overall lake lies within Tibet China, 40% in Ladakh India and the rest is disputed and is a de-facto buffer zone between India and China. The lake is 5 km (3.1 mi) wide at its broadest point. All together it covers 604 km2
. During winter the lake freezes completely, despite being saline water. It has a land-locked basin separated from the Indus River basin by a small elevated ridge, but is believed to have been part of the latter in prehistoric times.