Mapping: North-East India
- Northeast India (officially North Eastern Region, NER) is the easternmost region of India representing both a geographic and political administrative division of the country.
- It comprises eight states – Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland, Sikkim, and Tripura.
Hills of North-Eastern India
- Eastern Himalayas are present in North-East India. The Brahmaputra marks the eastern border of the Himalayas.
- Eastern Hills/ Purvanchal: Beyond the Dihang gorge, the Himalayas bend sharply towards south, forming the Eastern hills or Purvachal.
- Although comparatively low in height (500m-3000 m), these hills are difficult to access because of rough terrain, dense forests and swift streams.
- They are mostly composed of sandstones (i.e. Sedimentary rocks).
- These hills are composed of the Patkai Hills, Naga Hills, Manipuri Hills and Mizo Hills.
The Barail Range seperates Naga Hills from Manipur Hills.
- Hills of Garo, Khasi and Jaintia in Meghalaya and Mikir hills (Rengma hills) in Assam are structurally part of peninsular plateau (Shillong Plateau)and not the Himalayan ranges.
- “Cherrapunji” and “Mawsynram” are situated to the south of the Khasi hills.
- Origin: Chemayungdung glacier in the Kailas range
- Near Namcha Barwa, Brahmaputra takes a sudden U turn and then southwestward turn to pass through Dihang gorge.
- Initially it is called as Siang and then Dihang.
- Tributaries joining from north: Dibang, Subansiri, Kameng, Belsire, Dhansiri (north), Manas, Sankosh and Tista
- Tributaries joining from south: Lohit, Dibru, Burhi, Dihing, Dikhu, Dhansiri (South) and Kalang
- It enters Bangladesh near Dhubri.
- It is known as Jamuna after joining of Tista.
- When Jamuna and Ganga joins together, it is called as Padma.
- In South Padma is joined by Meghana (Barak river in India) and is termed as Meghana before it merges into Bay of Bengal.
- Majuli Island: Majuli or Majoli is the largest river island in the world in the Brahmaputra River, Assam, India.
- National Waterway 2: Brahmaputra from Dhubri to Sadiyawas declared as National Waterway no. 2 vide National Waterway
- Barak river rises in Manipur Hills and flows west becoming the Surma river and then flows south as the Meghna river in Bangladesh.
Note: Please locate all the locations from Atlas while doing this exercise