Phoksundo Lake is an alpine fresh water oligotrophic lake in Nepal's Shey Phoksundo National Park at an elevation of 3,611.5 m (11,849 ft) in the Dolpa District. Phoksundo Lake is 494 ha (1.91 sq mi) in size with a water volume of 409,000,000 m3 (1.44×1010 cu ft) and a discharge of 3.715 m3/s (131.2 cu ft/s). In 2004, a survey by the Department of Hydrology and Meteorology measured the maximum depth of the lake at 145 m (476 ft). In 2019, another detailed survey was carried out by the Department of Hydrology and Meteorology, which measured the maximum depth of the lake at 136.20 m (446.9 ft).