Dazecuo

Dazecuo (also known as Dagze Lake, ; ) is one of many inland lakes in Tibet. It is a salt lake on the Tibetan Plateau in Xainza County within Nagqu in the Tibet Autonomous Region of China. It was reported in 2021 that the lake receives "good environmental protection".

It has an area of 260 km2 (100 square miles) and an elevation of 4,459 meters above sea level. In 2021 the lake was 21.1 kilometers in length and 16.9 kilometers wide.

In glacial times, the region was considerably wetter, and lakes were correspondingly much larger. Changes in climate have resulted in greater aridity on the Tibetan Plateau. The numerous concentric rings that circle the lake are fossil shorelines, and attest to the historical presence of a larger, deeper lake.