Guru Shikhar is a peak in the Arbuda Mountains of Rajasthan and is the highest point of the Aravalli Range. It is located 15 km away from Mount Abu city. Gurushikhar peak is 1,722 metres above the sea level. It is named Guru-Shikhar or 'the peak of the guru' after Dattatreya, an incarnation of Vishnu, and a cave at the summit contains a temple dedicated to him and another one dedicated his mother, Anasuya, wife of sage Atri. Gurushikhar is visited by many travellers from far and distinct places and it is one of the major destinations of Mount Abu. Gurushikhar offer 360 degree panoramic view of surroundings and lush environment. Close to the temple is the Mt Abu Observatory operated by the Physical Research Laboratory. This observatory hosts a 1.2m infrared telescope and also several Astronomy experiments.