Trashigang Dzongkhag is the largest and the most populous Dzongkhag in the country. It shares its borders with Monggar Dzongkhag in the west, Samdrup Jongkhar and Pemagatshel in the South, Trashi Yangtse in the north and the Indian state of Arunachal Pradesh in the east. It is situated at an elevation ranging from 600-4,500 meters above sea level. The climate is mainly temperate with an annual rainfall between 1000 mm and 2000 mm.
It is home to a unique highland race of people called the Dakpas who live in the twin villages of Merak and Sakteng.
Trashigang is also famous for textile woven of raw silk called Bura. The people of this region are famous for their skill in the production of natural dyes and dyeing.
Trashigang Dzongkhag is also famous for a large variety of bird species including rufous-necked hornbill (Aceros nipalensis), Chestnut-breasted Partridge (Arborophila mandellii) Pallas’s Fish eagle (Haliaeetus leucoruphus) etc.