This famous lake situated at an altitude of 14,100 ft (4,267m). It is 6 to 7 kms (4.5 miles) at its widest point, and over 130 kms (80 miles) long, and is divided by the international border between India (one-third of it lying in India ) and China only. Spangmik, the farthest point up to which foreigners are permitted, is about 7 kms along the southern shore from the head of the lake. It presents a spectacular view of the mountains of the Chang-chenmo range to the north, their reflections shimmering in the ever-changing blues and greens of the lake’s brackish waters. Above Spangmik are the glaciers and snow-capped peaks of the Pangong range. Spangmik is a small village with a handful of families spread across a narrow stretch of earth between the lake and adjoining mountains. The blue expanse of the lake, stretching for more than 100km and spread across two countries, clearly dominates the local landscape. Pangong Chang-pa cultivate sparse crops of barley and peas in summer. It is in winter that they unfold their yak wool tents called rebo, and take the flocks of sheep and pashmina goats out to the distant pastures.
The lake acts as an important breeding ground for a variety of birds including a number of migratory birds. During summer, the Bar-headed goose and Brahmini ducks are commonly seen here. The region around the lake supports a number of species of wildlife including the kiang and the Marmot.