The Koshi river basin – shared by China, India, and Nepal – is home to iconic peaks, including Mount Everest, as well as signifi cant water resources stored in glaciers, snow, and glacial lakes. These resources help make the Koshi basin the largest contributor of water fl ow to the mighty Ganges River. Spanning 88,000 square kilometers, the transboundary basin has high global ecological signifi cance and is a source of water and livelihoods for over 40 million people.