ABSTRACT
Geographically, the Himalayan mountain system is divided into (a) the Greater Himalaya Himadri area above the main central thrust, consisting of snow-clad peaks, glaciers, and ranges of mountains, (b) the Lesser Himalaya Himachal, which is separated from the Himadri by the main central thrust in the north and by the main boundary thrust in the south, consisting of high mountains cut into deep ravines and precipitous deles, and (c) the sub-Himalayan tract Sivalik, the foothill belts of the region, consisting of the latest geological formation of loose boulders and soil (Pradhan et al. 2004).
