Himalayas is a major physiological division spread to the North of India. The extension of this physical region is seen in several zones.
The natural form of Himalayas is classified into three divisions:
1. Himachal Himalaya
2. Kumaon Himalaya
3. Nepal Himalaya
4. Assam Himalaya
1. Himachal Himalaya: Its extension is found from River Indus to River Sutlej. This part covers an area of 570 km in length which is spread mainly in Jammu and Kashmir , and Himachal Pradesh. The ranges like Pir Panjal, Dhauladhar, Zaskar, Ladakh etc. are found in this region. The valleys of Kangra, Lahul and Spiti are also found here, in which the plantation farming of fruits is done.
2. Kumaon Himalaya: The length of this part of Himalaya is 320 km which extends from the River Sutlej to River Kali. This region is higher than of Himachal Himalaya, in which the peaks like Badrinath (7138 meters), Kedarnath (6831 meters), Trishul (6770 meters) and Gangotri (6580 meters), are found. The origin of Rivers Ganga and Yamuna is there in this region. There are many tourist spots here, in which Kedarnath, Badrinath, Gangotri, Yamunotri are the major ones.
3. Nepal Himalaya: The length of this part of Himalaya is 800 km which extends from Kali River to Teesta. Most of its part is found in Nepal, so it is called the Nepal Himalaya. It is also known as the Sikkim and Bhutan Himalaya and Darjeeling Himalaya. It is the highest part of Greater Himalayas in which the peaks like Mount Everest, Kanchejunga, Makalu, Dhaulagiri and Annapurna are found, which are always covered with snow.
4. Assam Himalaya: This part of Himalaya extends from the River Teesta to Brahmaputra. The length of this region is 740 km. The main peaks of this part of Himalaya are Kangto (7060 m), Nyegyi Kangsang (7047m), Namcha Barwa (7782 m) and Gyala Peri (7294 m). It has thick forests in which many tribes dwell. The Naga Hills act as a water divider between India and Myanmar.