Lake Manasarovar (Mapam Yumco) ( Tibetan: མ་ཕམ་གཡུ་མཚོ།, Wylie: ma-pham g.yu-mtsho, ZYPY: Mapam Yumco; Sanskrit: मानसरोवर; simplified Chinese: 玛旁雍错; traditional Chinese: 瑪旁雍錯; alternatively Mapam Yum Co, Mapham Yu Tso), or Manasa Sarovar/Lake Manas, is a freshwater lake in the Tibet Autonomous Region of China 940 kilometres (580 mi) from Lhasa. To the west of Lake Manasarovar is Lake Rakshastal; toward the north is Mount Kailash.
Lake Manasarovar lies at 4,590 metres (15,060 ft) above mean sea level, a relatively high elevation for a large freshwater lake on the mostly saline lake-studded Tibetan Plateau. Despite claims to the contrary, there are hundreds of higher freshwater lakes in the World, including a larger and higher freshwater lake at 4,941 metres (16,211 ft) above sea level and 495 km2 in size, Angpa Tso (East Chihpuchang Hu), further east on the Tibetan Plateau at 33-24N 90-17E. The largest freshwater lake of its size (290 km2) over 5000 meters elevation is Pumoyong Tso (Pumuoyong Tso), also on the Tibetan Plateau, at 28-34N 90-24E and 5,018 metres (16,463 ft) elevation.
Lake Manasarovar is relatively round in shape with the circumference of 88 kilometres (55 mi). Its depth reaches a maximum depth of 90 m (300 ft) and its surface area is 320 square kilometres (120 sq mi). It is connected to nearby Lake Rakshastal by the natural Ganga Chhu channel. Manasarovar is near the source of the Sutlej River which is the easternmost large tributary of the Indus. Nearby are the sources of the Brahmaputra River, the Indus River, and the Karnali River (Ghaghara), an important tributary of the Ganges River.
The word "Manasarovara" originates from Sanskrit, which is a combination of the words "Manas" "sarovara" manas meaning mind and sarovara meaning lake. According to the Hindu religion, the lake was first created in the mind of the Lord Brahma after which it manifested on Earth.