Trekking in Dolpo region is difficult level by the point of view of accessible. The settlement in this area is started in the 10th century by farmers and Tibetan nomads. Shey Phoksundo National Park covers and protects most of the part of Dolpa.
In Buddhist Himalaya, David Snellgrove recounts how the demon was fleeing from the saint Padmasambhava and gave the village people a turquoise after they promised not to tell that she had passed by. Padmasambhava turned the turquoise into a lump of dung, which upset so much the local people and they revealed the demon's whereabouts. She, in return caused a flood. It is said you can see the remains of a village below the lake's surface.