- They are aligned in a north-east to south-west direction.
- They run for about 800 km between Delhi and Ahmedabad in Gujarat, with the width and the height decreasing from Gujarat to Delhi.
- They are one of the oldest fold mountains of the world and the oldest in India that are formed by double orogeny.
- They are formed due to folding.
- They continue up to Haridwar and are buried under the alluvial Ganga plains.
- Aravallis have an average elevation in the range of 400-600m with a few hills having heights above 1000m.
- Mt. Gurushikhar (1722m) is the highest point of the Aravallis.
- West-flowing river in the region is Luni, and the east-flowing river is Chambal.
- The Aravallis share the western border with the Thar desert and the eastern border with the Mewar plateau.
- It acts as a climate and water divide.