Trashigang lies in the far east of Bhutan, and is the country’s largest district. Trashigang town, on the hillside above the Gamri Chu (river), was once the center for a busy trade with Tibet. Today it is the junction of the east-west highway, with road connections to Samdrup Jongkhar and then into the Indian state of Assam. This town is also the principle market place for the semi-nomadic people of Merak and Sakteng, whose way of dress is unique in Bhutan.
Built in 1659, the dzong serves as the administrative seat for the district as well as the home of the monk body. The dzong commands a remarkable view over the surrounding countryside.
24 km. from Trashigang, the temple of Gom Kora is set on a small alluvial plateau overlooking the river. Surrounded by rice fields and clumps of banana trees, it looks like an oasis in an arid landscape. It is one of the famous places where Guru Rinpoche meditated in order to subdue a demon which dwelt in a huge black rock.