In the state of Andhra Pradesh lies the largest of India's Tiger Reserves, the Nagarjunasagar - Srisailam Sanctuary (3568 sq. km.). The terrain is rugged and winding gorges slice through the Mallamalai hills. Adjoining the reserve is the large reservoir of the Nagarjunasagar Dam on the River Krishna. The dry deciduous forests with scrub and bamboo thickets provide shelter to a range of animals from the tiger and leopard at the top of the food chain, to deer, sloth bear, hyena, jungle cat, palm civet, bonnet macaque and pangolin. In this unspoilt jungle, the tiger is truly nocturnal and is rarely seen.