Lhoka region forms one-fifteenth of the total area of the Tibet Autonomous Region. It comprises 12 counties, out of which the eight northern counties are the Nedong, Qusum, Qonggyai, Sangri, Comai, Zhanang, Gyacha and Cona in the middle valley of the Yarlung Zangbo, and the remaining four namely, the Gonggar, Lhunzi, Lohozhag and Nagarze are in the Himalayan belt. The Cona, Lhongzi, Nanggarze and Lhozha counties form the International Border. The city's district and counties have 144 townships of which 71 townships are in agricultural sector, 18 are in animal husbandry sector and the balance 55 are a mix of the two sectors. There are also five neighbourhood committees and 719 village committees. The wide Yarlung River flowing from west to east (between Quxu and Gyacha) also known as Tsongpo and the Brahmaputra River in India and Jamuna in Bangladesh, and its tributaries flows through the middle and lower stretches of the city and is bounded by Lhasa on the north, Nyingchi on the east, Shigatse to the west and international border that extends to with India and Bhutan. The river system has provided large perennial source of water in the region of fertile land. The valley created by the river system has very green pasture land and thick forests.