Rajasthan is located in the northwest of the peninsula and is the largest Indian state by area, more than 10 % of India's total geographical area. Most of the state is covered by the inhospitable Thar Desert, also known as the Great Indian Desert. The Aravalli Range runs across the state from the southwest peak Guru Shikhar aka Mount Abu (1,722 m asl) to Khetri in the northeast. It divides the state in two parts, the bigger northwestern part, which is a desert sand plain, and the smaller southeastern part, which is 100 m to 350 m asl and more fertile. The main sights are stepwells, which are of great importance in the semi-arid parts of the state.