Glaciers in Bhutan
The glaciers in Bhutan, which covers about 3 percent of the total surface area, are responsible for feeding all rivers of Bhutan except the Amochu and Nyere Amachu. Not much historical information is available on these glacial systems; the first modern survey was conducted by Augusto Gansser-Biaggi in the 1970s, who developed a chronology of past glaciations, and warned of imminent glacial lake outburst floods (GLOF) in Lunana.