Upper Siang district,Arunachal Pradesh

Upper Siang is an administrative district in the state of Arunachal Pradesh in India. It is the fourth least populous district in the country (out of 640).

At one-point of history this place was part of Independent Tibet and known as Pemako. Majority of the people are Adi of tribe while the Memba, Khamba Idu Mishmi tribe also exist there. There are 7 plants in the district.The district was formed in 1999 when it was split from East Siang district.
The district headquarters are located at Yingkiong. Upper Siang district occupies an area of 6,118 square kilometres (2,362 sq mi),comparatively equivalent to Russia’s New Siberia Island.
The district is the location of the massive Upper Siang Hydroelectric Project.
National protected area
Mouling National Park (Part)
There are two Arunachal Pradesh Legislative Assembly constituencies in this district: Tuting-Yingkiong and Mariyang-Geku. Both are part of Arunachal East Lok Sabha constituency.
According to the 2011 census Upper Siang district has a population of 35,320,roughly equal to the nation of Liechtenstein.This gives it a ranking of 637th in India (out of a total of 640).The district has a population density of 5 inhabitants per square kilometre (13/sq mi) .Its population growth rate over the decade 2001–2011 was 5.77%.Upper Siang has a sex ratio of 891 females for every 1000 males,and a literacy rate of 59.94%.
Various tribal groups of the Adi people and the Memba tribe live in the district. The Adi follow generally follow Donyi-Polo, and the Memba are followers of Tibetan Buddhism.
Languages spoken include Adi, a Sino-Tibetan tongue with approximately 140 000 speakers, written in both the Tibetan and Latin scripts.
Flora and fauna
In 1986 Upper Siang district became home to Mouling National Park, which has an area of 483 km2 (186.5 sq mi).A new mammal to science, Mebo giant flying squirrel (Petaurista siangensis) has been reported from this district