Chitwan National Park is the first national park of Nepal. It was established in 1973 and was granted the status of a World Heritage Site in 1984. It covers an area of 952.63 km2 (367.81 sq mi) and it is located in the subtropical Inner Terai lowlands of south-central Nepal in the districts of Nawalpur, Parasi, 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 Sivalik Hills.