Established as a separate district in 1992, Trashiyangtse is one of the newest districts in the country. Formerly a part of Trashigang, the district pushes up into the north-east Indian state of Arunachal Pradesh The total area of the district is about 1,437.8sq km,with elevations ranging from 1,000-5,400m above sea level. The district is subdivided into eight blocks for ease of administration. Trashiyangtse is a rapidly growing town and the administrative center for this district. Situated in a small river valley, it is a loving spot from which to take walks in the surrounding countryside. The dzong overlooking the town was built in the late 1990s when the new district was created. Trashiyangtshe is famous for its wooden containers and bowls, which make inexpensive, attractive and useful mementos of a visit to this remote region.
 
DONGDI DZONG:
The Dongdi Dzong, which later came to be known as Trashiyangtse Dzong, was first built by Gongkar Gyalpo, son of Lhasey Tsangma .But the Tibetan invasion made the people of Donglum flee and the Dzong fell to ruin. In the 14^th century Terton Pema Lingpa rebuilt the Dzong and named it Trashiyangtse Dzong.The 3^rd Desi Chogyal Minjur Tempa later renovated the existing structure.
 
The Yangtseps, as the people of the region are known, are Buddhists and one economic many monasteries and temple in Trashiyangtse .The well known temple are the Rigsum Goempo founded by lam Tshering Jamtsho, the disciple of Je Sakya Rinchhen,the 9^th Chief Abbot of Bhutan ,Choeten Kora built in the 18^th century by lama Ngawang Lodey and consecrated by the 13^th Je Sherub Wangchuk and the sacred Nye at Gomphu Kora visited by Guru Rinpoche and many other well known masters. Besides the Dongdi Dzong, the Iron Chain Bridge over Kholung Chu at Duksum, and the ruins of the 9^th century Tshenkharla Dzong at khamdang are other important monuments.The Iron Chain bridge was built in the 15^th century by the great Yogi Dupthob Thabgthong Gyalpo and is considered to be one of the eight bridges the great saint built in Bhutan. The castle at Tshenkharla was in fact the first castle to have been built in Bhutan. It was built by Lhasey Tsangma Tibetan Prince who settles there following his exile from his native land.

Trashiyangtse famers grow chilies as cash crop and their staple diet consists of maize, wheat, barley and buckwheat. The Yangtseps are easygoing like the other easterners, and they love to drink locally brewed alcohol. Hospitality in a Yangtseps home always includes alcoholic drinks along with suja, the traditional butter tea. The people are also skilled woodworkers (Shagzo).The arts of traditional wood bowl making (Daapas)are Bhutanese paper making (Dey dzo)are also well established. These prized crafts from Trashiyangtse find their way to the bigger markets of the capital and other places frequented by tourists.

The traditional handmade paper of the region especially is popular in other parts of the country as it makes fine wrapping for gifts, and can be folded into tasteful envelopes, cards and notebooks.

The district also boasts a wealth of flora and fauna, and Bomdeling is the winter roosting place of the rare and endangered black –necked cranes. The reportedly are 293 species of birds, 32 species of butterflies and many other significant wildlife species including the red panda ,the Himalayan black bear, the barking deer and the wild dog.
The Bomdeling Wildlife sanctuary also has of the richest temperate fir forest in the eastern Himalayas, offering a protected habitat for big cats like the Bengal tiger and the common leopard.  

THE INSTITUTE FOR ZORIG CHISUM:
Where students study the 13 traditional arts and crafts of Bhutan, is also worth a visit.
 
CHORTEN KORA:
This dazzling white stupa is situated on the riverbank below the town. Constructed in 1740 by Lama Ngawnag Loday, it is built in the same style as Bodnath Stupa Nepal, with eyes painted at the four cardinal points. During the second month of the lunar calendar there is an interesting celebration here, known as ‘Kora’

BOMDELING 
A Pleasant walk of about three hours from Chorten Kora, Bomdeling is an annual migration place for black necked cranes, which fly over from nearby Tibet to pass the winter months in a warmer climate.