A 4556m-high lake in western Tibet, 35km SSE of Mount Kailash, where the Sutlej, Brahmaputra, Indus, and Karnali rivers have their headwaters. Like Kailash, an important place of pilgrimage for Tibetan Buddhists, Hindus, Jains, and Bonpas (the native pre-Buddhist religion of Tibet). A kora or parikrama (circuit; circumambulation) of the lake takes about 4-5 days.