Barind Tract
Barind Tract is the largest Pleistocene era pysiographic unit in the Bengal Basin. It covers most of Dinajpur, Rangpur, Pabna, Rajshahi, Bogra, and Joypurhat districts of Rajshahi Division and Rangpur Division in Bangladesh as well as entirety of Uttar Dinajpur, Dakshin Dinajpur and most of Maldah districts in West Bengal, India. It is made up of several separate sections in the northwestern part of Bangladesh, and, northern part of West Bengal, India covering a total area of approximately of mostly old alluvium. On the eastern edge of the tract is a lower fault escarpment. Through the fault troughs run the little Jamuna, Atrai and Lower Punarbhaba rivers. To the west, the main area is tilted up, and to the east this area is tilted downwards. The climate of the tract differs from that of much of India, in that more extreme temperature variations are encountered there. It is divided into three units: The Recent Alluvial Fan, the Barind Pleistocene, and the Recent Floodplain. These are divided by long, narrow bands of recent alluvium.Footnotes
