Cêmar
Cêmar Co lies in a high basin of the western Changtang, southeast of another inland lake, Gangmar Co. At more than 4,500 metres above sea level, Cêmar Co occupies a depression among the open uplands of the Tibetan Plateau. The region is cold and dry, with little rain and a great difference between daytime and nighttime temperatures. Mountains separate the lake basins across this part of the plateau.