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The physiography
of Rajasthan is the product of long years of erosional and depositional processes. The
present landforms and drainage systems have been greatly influenced and determined by the
geological formation and structures. Four major physiographic regions can be identified
within the state. These are (1) The western desert (Thar) The Aravalli hill ranges, running from north-east to south-west, divides the state approximately into the western arid and eastern semi-arid regions. It is also a major water divide. The area, to its east, is well drained by several integrated drainage systems, while the area, to the west, has only one integrated drainage system, that is the Luni drainage system in the south-eastern part of the desert. |
