Periyar National Park and Wildlife Sanctuary (PNP) is a protected area located in the districts of Idukki and Pathanamthitta in Kerala, India. It is a renowned elephant and tiger reserve. The protected area encompasses 925 km2 (357 sq mi), of which 350.54 km2 (135.34 sq mi) of the main zone was declared as the Periyar National Park in 1982. The park is a repository of rare, endemic, and endangered flora and fauna and forms the major watershed of two important rivers of Kerala: the Periyar and the Pamba.