Gyala Peri is a peak just beyond the eastern end of the Himalayas at the entrance to Tsangpo gorge. It is part of Nyenchen Tanglha Shan, although it is sometimes included in Namcha Barwa Himal of the Himalayas. Gyala Peri lies just north of the Great Bend of the Yarlung Tsangpo River, the main river of southeastern Tibet, which becomes the Brahmaputra in India. It is 22 km NNW of the higher Namcha Barwa.(Wikipedia)