Explanation:

Himachal is in the western Himalayas.Covering an area of 55,673 square kilometres (21,495 sq mi), it is a mountainous state. Most of the state lies on the foothills of the Dhauladhar Range. At 6,816 m, Reo Purgyil is the highest mountain peak in the state of Himachal Pradesh.

The drainage system of Himachal is composed both of rivers and glaciers. Himalayan rivers criss-cross the entire mountain chain. Himachal Pradesh provides water to both the Indus and Ganges basins.The drainage systems of the region are the Chandra Bhaga or the Chenab, the Ravi, the Beas, the Sutlej, and the Yamuna. These rivers are perennial and are fed by snow and rainfall. They are protected by an extensive cover of natural vegetation.