Lonak Glacier

Lonak Glacier is an ice formation in northeastern Sikkim that feeds the Lhonak river system and the Teesta River basin. The frozen mass sits high in the mountain range and directly influences water flow to the valleys below.

The glacier formed over millions of years through the gradual buildup and compression of snow layers in the highest Himalayan regions. Its creation is part of the geological history that shaped the entire Sikkim mountain landscape.

Local Sikkim communities view the glacier and surrounding mountains as sacred sites woven into their traditional beliefs and daily practices. This spiritual connection shapes how people relate to and respect the high mountain landscape today.

The glacier sits at high altitude and is reachable only for experienced mountaineers with proper gear and acclimatization. Visitors should expect extreme weather conditions and plan visits during the drier months.

The glacier sits in a rain shadow area of the mountains, creating unusual conditions for a Himalayan region. This produces high-altitude desert conditions quite different from the wet mountain environments typically found at this latitude.