Phoksundo Lake is a remote high‑altitude freshwater lake in western Nepal. The lake lies within the protected area of Shey Phoksundo National Park, in a rugged valley of the Trans‑Himalayan region. It sits at an elevation of 3,611.5 m and is famed for its clear, deep blue‑green color, a visual hallmark for visitors and researchers alike.
Physically, Phoksundo occupies a basin set among steep cliffs and alpine meadows. It covers a total size of about 494 hectares (1.91 square miles) and contains an estimated 409,000,000 cubic metres of water. The lake’s clarity and color are influenced by the surrounding geology, dissolved minerals and suspended fine particles. As a high‑altitude body of water, it has cold, oligotrophic conditions that shape the lake’s ecology.
Beyond natural features, Phoksundo has cultural and local importance. The lakeshore is home to the traditional village of Ringmo and to Buddhist and Bon religious sites; prayer flags and small gompas are commonly seen near the shore. The lake and its surroundings are part of local spiritual practices and seasonal pastoral life, and they feature in trekking and pilgrimage routes that attract domestic and international visitors.
History and protection
The lake sits inside a national park created to conserve a mosaic of alpine ecosystems, high pastures, and threatened wildlife. The park designation helps regulate access, grazing, and development around the lake, while also supporting local livelihoods through controlled ecotourism. Management efforts focus on balancing visitor use with conservation of water quality, vegetation and cultural sites.
Access, use and conservation issues
Reaching Phoksundo typically requires several days of trekking from roadheads; the remoteness limits large‑scale development but also makes routine monitoring challenging. Popular uses include trekking, cultural visits, wildlife observation and limited scientific study. Conservation concerns include impacts from increasing visitor numbers, infrastructure pressures in valley villages, and broader climatic changes that can alter hydrology in high mountain watersheds.
- Location: northwestern Nepal, Mustang district and adjacent zones.
- Elevation: 3,611.5 m (above sea level).
- Size and water volume: about 494 ha and roughly 409,000,000 m3 (size and storage).
- Protection: within Shey Phoksundo National Park, a conservation area combining natural and cultural values.
Phoksundo Lake remains one of Nepal’s most distinctive high‑mountain lakes—valued for its scenic character, cultural setting and role in regional ecology. Ongoing stewardship aims to preserve its water quality and cultural landscape while allowing people to visit responsibly and learn about this remarkable alpine environment.