Namucuo（Namtso or Lake Nam，“Heavenly Lake”） is a mountain lake at the border between Damxung County of Lhasa Prefecture and Baingoin County of Nagqu Prefecture in the Tibet Autonomous Region of China, approximately 112 kilometres (70 mi) NNW of Lhasa. The lake lies at an elevation of 4,718 m, and has a surface area of 1,920 square kilometres. This salt lake is the largest lake in the Tibet Autonomous Region. Namtso is renowned as one of the most beautiful places in the Nyainqêntanglha mountain range. Namucuo is the highest lake in the world. The 2nd largest salt lake in China.
Tibet Autonomous Region is situated at the southwest border, southwest of Qinghai-Tibet Plateau, longitude 78 ° 25 'to 99 ° 06 ', latitude 26 ° 44 'to 36 ° 32 ' between. It is bounded by the Xinjiang Uygur Autonomous Region, Qinghai Province, northeast connecting the east of Sichuan Province, Yunnan Province, south-east and connected; south and west with Myanmar, India, Bhutan, Sikkim and Kashmir and other countries and regions bordering China and the formation of national and Border lines of all or part of a total length of 4,000 kilometers. Tibet, with its magnificent, magical magnificent natural scenery known. Her vast territory, spectacular landscape and abundant resources. Since ancient times, people of this land to create a rich and splendid culture.