Trashingang lies above the Gumri river and is the largest district in Bhutan, It is much busier than other Bhutanese towns due to its proximity to Samdrup Jongkhar in teh south has enabled it to grow as a center of commerce. Trashigang is used as the market place for the hille people from Merak and Sakteng who are known for their exceptional features and for their costume made of Sheep skin and Yak wool. The hat that they wear is unusual but has a significance of its own. It is very different from customary Bhutanese clothing. The 17th century Dzong is built on top of a cliff and serves as an administative center.

Tashi Yangtse formerly a subdivision of Trashigang is one of the new districts. Yangtse Dzong is half an hour walk from the road. A town has developed around Chorten Kora, one of only two chortens built in a Nepalese style and a spot where Guru Padmasambhava is believed to have has a vision that a temple and a chorten would be built. The area is also known for its exceptional woodcraft. Another temple lies on the banks of the Gumpri river known as the Gom Kora dedicated to Guru Padmasambhava where he supposed to have subdued a demon in form of a Garuda. A festival takes place every year at this temple.