Frozen Himalayan Lakes Highlight India’s High-Altitude Glacial Ecosystems
A recent feature on India’s frozen Himalayan lakes has highlighted the ecological, geographical and cultural significance of several high-altitude glacial lakes including Gurudongmar Lake, Tsomgo Lake, Suraj Tal, Chandratal and Roopkund Lake. These lakes are important not only for tourism and pilgrimage but also for understanding Himalayan hydrology, glacial geomorphology and climate sensitivity.Most of these lakes remain frozen during winter due to extremely low temperatures and their high-altitude locations in the Himalayan cryosphere.
High-altitude glacial lakes are formed primarily through:
These lakes are ecologically and hydrologically important because they:
Many Himalayan lakes are also culturally and spiritually revered.
6Gurudongmar Lake is among the world’s highest lakes situated at an elevation of nearly 5,430 metres in North Sikkim.The lake remains frozen between November and May. According to local belief, one part of the lake never freezes due to blessings associated with:
The lake contributes to the headwater systems feeding the Teesta River.
7Located at an altitude of around 3,753 metres, Tsomgo Lake is a glacial lake situated near Gangtok in Sikkim.The lake freezes during winter and is culturally significant for local Sikkimese communities. Buddhist monks traditionally associated the lake with spiritual omens and seasonal changes.
5Suraj Tal, located below the Baralacha La Pass in Lahaul-Spiti, lies at an elevation of approximately 4,890 metres.The lake is fed by glaciers and freezes during winter, creating a vast frozen landscape.
6Known as the “Moon Lake” because of its crescent shape, Chandratal Lake lies in the Spiti region of Himachal Pradesh at around 4,300 metres.The lake freezes completely during winter months and is known for its scenic alpine environment.
6Roopkund Lake, situated at approximately 5,020 metres in Uttarakhand, is famous as the “Skeleton Lake” due to the discovery of hundreds of ancient human skeletons around its edges.The lake remains frozen and snow-covered during winter.
Himalayan glacial lakes are increasingly vulnerable to:
The shrinking of glaciers and changing snowfall patterns are altering the hydrology of these lakes and increasing disaster vulnerability in Himalayan regions.
| Feature | Details |
|---|---|
| Formation | Glacial erosion and snowmelt accumulation |
| Importance | Freshwater storage, river sources and ecological regulation |
| Major Threats | Climate change, glacier retreat and tourism pressure |
| Lake | State | Approximate Elevation |
|---|---|---|
| Gurudongmar Lake | Sikkim | 5,430 m |
| Tsomgo Lake | Sikkim | 3,753 m |
| Suraj Tal | Himachal Pradesh | 4,890 m |
| Chandratal | Himachal Pradesh | 4,300 m |
| Roopkund Lake | Uttarakhand | 5,020 m |
| Term | Meaning |
|---|---|
| Glacial Lake | Lake formed by glacial activity |
| Moraine | Accumulation of glacial debris |
| GLOF | Glacial Lake Outburst Flood |
| Cryosphere | Earth’s frozen water system |
Updated – 14 January 2026 ; 01:04 PM |Indian Express News Source