The Mudumalai National Park and Wildlife Sanctuary also a declared Tiger Reserve, lies on the northwestern side of the Nilgiri Hills (Blue Mountains), in Nilgiri District, about 150 km (93 mi) north-west of Coimbatore city in Kongu Nadu region of Tamil Nadu. It shares its boundaries with the states of Karnataka and Kerala. The sanctuary is divided into 5 ranges – Masinagudi, Thepakadu, Mudumalai, Kargudi and Nellakota.