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Brahmaputra River Course Trajectory and Regional Nomenclature

The river exhibits distinct physical characteristics and adopts different names as it traverses diverse topographic zones.

• Tibet (Source): The river rises from the Chemayungdung Glacier near Mount Kailash at an altitude of 5,300 meters. Local populations refer to this section as the Yarlung Tsangpo, which flows eastward for 1,600 kilometers across the Tibetan Plateau.

• India (Entry): The river enters India through Arunachal Pradesh after negotiating the Great Bend at the Namcha Barwa Gorge. Here, the river takes the name Siang or Dihang and flows for 230 kilometers to Pasighat.

• Assam (Expansion): Two major tributaries, the Dibang and the Lohit, join the Siang near Pasighat to form the Brahmaputra proper. The channel expands significantly in the Assam plains, measuring up to 10 kilometers wide in places.

• Bangladesh (Exit): The river turns south into Bangladesh, merging with the Ganga (Padma) to become the Jamuna, finally emptying into the Bay of Bengal.

Conclusion

The Brahmaputra River Map defines a high-volume, sediment-rich hydrological system that drains the Tibetan Plateau and the Eastern Himalayas. It flows 2,900 kilometers, supports a catchment of 580,000 square kilometers, and provides the foundation for the economy and ecology of Northeast India. The river sustains critical biodiversity in Kaziranga and Manas while simultaneously posing risks through annual flooding and erosion.