Sagarmatha Natioanal Park
The Sagarmatha National Park was established in 1976. In 1979, it became the country's first national park that was inscribed as a Natural World Heritage Site. In January 2002, a Buffer Zone comprising 275 sq km (106 sq mi) was added. Under the Buffer Zone Management Guidelines the conservation of forests, wildlife and cultural resources received top priority, followed by conservation of other natural resources and development of alternative energy.
Most of the park area is very rugged and steep, and the terrain cut by deep rivers and glaciers. The park contains the upper watershed of the Dudh Kosi river basin and the Gokyo Lakes. Barren land above 5,000 m (16,000 ft) comprises 69% of the park while 28% is grazing land and the remaining 3% is forested. Climatic zones include a forested temperate zone, a subalpine zone above 3,000 m (9,800 ft), and an alpine zone above 4,000 m (13,000 ft) that constitutes the upper limit of vegetation growth. The nival zone starts at 5,000 m (16,000 ft).