Chitwan National Park is the first national park in Nepal. It was established in 1973 and granted the status of a World Heritage Site in 1984. It covers an area of 932 km2 (360 sq mi) and is located in the subtropical Inner Terai lowlands of south-central Nepal in the districts of Nawalparasi, Parsa, Chitwan and Makwanpur. In altitude it ranges from about 100 m (330 ft) in the river valleys to 815 m (2,674 ft) in the Churia Hills.