Langtang National Park is a national protected area in north-central Nepal. It was established in 1976 as Nepal's first Himalayan national park and the country's fourth protected area. It covers an area of 1,710 km2 (660 sq mi) in the Nuwakot, Rasuwa and Sindhulpalchok Districts of the central Himalayan region. It contains 26 village communities and includes the Langtang valley. In the north and east it is linked with Qomolangma National Nature Preserve in the Tibet Autonomous Region. The eastern and western boundaries follow the Bhote Koshi and the Trishuli river, respectively.

Rasuwa District (Nepali: रसुवा जिल्ला is one of 13 districts of Bagmati Province and one of seventy-seven districts of Nepal. The district, with Dhunche as its district headquarters, covers an area of 1,544 km2 and has a population of 43,300. Its District Post Office has a Rasuwa DPO code of 45000. There are five post offices in the district. As per census 2011 total households in Rasuwa district were 9,778. It is the smallest district by area, among 16 districts in the Himalaya region of Nepal.