Forestry is the major land use in the State and nearly 83% of the total geographical area of the State is under the administrative control of the State Forest Department. This proportion is one of the largest in the country. The Khangchendzonga National Park (1784 sq.km) is the only National Park in Sikkim and occupies 25.14 % of total geographical area of Sikkim viz. 78.30 % in North District, 18.32 % in West and 3.38 % South Districts. It is also a proposed World Heritage Site under natural and cultural category. In addition Sikkim has seven Wildlife Sanctuaries and one Conservation Reserve. All of these along with Reserve Forests together constitute 47.69% of the total geographical area under forest and tree cover, making it the greenest state in the country.