Langtang National Park

Langtang National Park is the fourth national park in nepal and was established in 1976 as the first himalayan national park. The protected area exceeds an altitudinal range of 6,450 metres (21,160 ft) and covers an area of 1710 km² in the nuwak rasuwa and sindhupalchok districts of the central Himalayan region .
The northern and eastern border of the national park coincide with the international border to the Tibet. The western boundary follows the rivers Bhote Kosi and Trisuli. The southern border lies 32 km north of the kathmandu valley. The rugged summits of Langtang lirung with an elevation of 7,227 metres (23,711 ft) and Dorje lakpa (6,966 metres (22,854 ft)) are included in the national park as well as the high altitude sacred lake of Gasainkunda.Already in 1970 a royal approval designated the establishment of Langtang National Park as the first protected area in the Himalayas. The national park was gazetted in 1976 and extended by a buffer zone of 420 km² in 1998.The climate of the park is dominated by the southwest summer monsoon.. Temperatures vary greatly due to the extreme difference in altitude in the entire area. Most of the annual precipitation occurs from June to September. In fall (October – November) and spring (April – May), days are warm and sunny, and nights cool. In spring, rain at 3000 m elevation often turns to snow at higher elevations. In winter from December to March, days are clear and mild but nights near freezing.