GLOF THREAT FROM LUNANA LOOMS LARGE
Lunana houses four major lakes-Thorthomi, Raphstreng, Luggye and Baytsho.
Thorthomi and Raphstreng are two of the 25 glacial lakes in Bhutan that poses serious GLOF risks. Bhutan has close to 3000 glacial lakes altogether.
Thorthormi is not a full lake yet. It is in its forming stage. Small ponds of melted glaciers are slowly converging into a large lake.
Just below Thorthormi, divided by a large moraine wall, lies the Raphstreng Lake.