Tilicho Lake the highest lake of the world at almost 5000 meters is said to be the Kak Bhusundi Sarovar lake mentioned in the Ramayana.
Kak Bhusundi Sarovar is the lake where a crow recited the Ramayana to Garuda (Vishnu's vehicle) and Shiva found some relief for missing Sita.
The Ramayana says that Kak Bhusundi Sarover is close to the Annapurna range. Tilicho Lake is a lake formed by melting glacier waters from the Annapurna mountains and the Thorung mountain.