Aruṇa (Aruna) is a mountain situated towards the west of the Kailāsa mountain. It is full of biodiversity, valuable minerals and herbal medicines. In Vāyupurāṇa (Vayupurana) , Aruṇaparvata is mentioned as the greatest mountain — aruṇaṃ parvataśreṣṭhaḥ.
At the foothill area of the ice-covered mountain Aruṇa, there is a sarovara called Śailodā (Sailoda) , where from emerges the sacred river Śailodā. A heavenly forest called Surabhi is located near the mountain Aruṇa.