The Aravalli ranges are some of the oldest mountain ranges in the world. Stretching over a length of 800 km, they are found in the states of Gujarat, Rajasthan, Haryana, and Delhi. Although very ancient, the Aravalli Ranges are not much elevated, yet they are of prime importance in terms of geography, climatic conditions, and historical significance to India.

Aravalli Ranges act as a natural barrier in between the alluvial plains of northern India and the Thar Desert; they are believed to restrict the expansion of the desert in the east. The range of hills exerts its influence on the climatic conditions of the desert in two ways: through the rain-shadow effect and in protecting the desert from the cold winds from Central Asia. Moreover, it extends the period of rainfall in Western India.

Aravalli ranges have metallic as well as non-metallic minerals. Natural forces have made these ranges full of copper, zinc, marble, and granite metals. Cities like Jaipur, Udaipur, and Alwar are present on these ranges. The Aravalli ranges have forests, wildlife, many national parks, and protected regions known as Sariska Tiger Reserve.

Aravalli hills have historic importance as these natural barriers helped in the evolution of ancient civilizations, as they protected the ancient kingdoms of Mewar and other places. Several historic monuments and forts are situated in these hills.

There are various environmental issues, including deforestation, mining, and urbanization, which are posing a threat to the Aravalli Hills even now. Conservation of these ancient mountain ranges is necessary for maintaining a balance in nature and for ensuring that the environment remains healthy.

Aravalli hills are not a part of physical geography but are a very significant component of natural heritage for India.