Karnali River in the context of "Manasarovar Lake"

Lake Manasarovar (Sanskrit: मानसरोवर, Hunterian: Mānsarovara) also called Mapam Yumtso (Tibetan: མ་ཕམ་གཡུ་མཚོ།, Wylie: ma pham g.yu mtsho, THL: ma pam yu tso; Chinese: 瑪旁雍錯; pinyin: Mǎ páng yōng cuò) locally, is a high altitude freshwater lake near Mount Kailash in Burang County, Ngari Prefecture, Tibet Autonomous Region, China. It is located at an elevation of 4,600 m (15,100 ft), near the western trijunction between China, India and Nepal. It overflows into the adjacent salt-water lake of Rakshastal via the Ganga Chhu. The sources of four rivers: Indus, Sutlej, Brahmaputra, and Karnali lie in the vicinity of the region.

The lake is sacred in Hinduism, Buddhism, Jainism and the Bon religion. People from India, China, Nepal and other countries in the region undertake a pilgrimage to the region. The pilgrimage generally involves trekking towards Lake Manasarovar and a circumambulation of the nearby Mount Kailash.

The Baise Rajya (Nepali: बाइसे राज्यहरू, lit. ‘22 kingdoms’) were sovereign and intermittently allied petty kingdoms in the western hills of what is now Nepal, located around the Karnali–Bheri river basin. They formed after the break up of the Khasa-Malla kingdom.These kingdoms were ruled by local dynasties, of Magar chieftains, depending on the region. Several of these kingdoms, particularly in areas like Rukum, Rolpa, and Pyuthan, had strong Magar leadership and populations. The Baise states maintained varying degrees of independence until they were gradually annexed during the unification of Nepal from 1744 to 1810. Although Prithvi Narayan Shah (r. 1743–1775), the founder of the Gorkha kingdom, initiated the unification, it was completed under his successors by the end of the 18th century.

The 22 principalities were Jumla, Doti, Jajarkot, Bajura, Gajur, Malneta, Thalahara, Dailekh District, Dullu, Duryal, Dang, Sallyana, Chilli, Tulsipur State, Darnar, Atbis Gotam, Majal, Gurnakot, and Rukum. These Baise states were ruled by Khasas and several decentralized tribal polities.