Introducing Trashi Yangtse Dzongkhag
Previously a drungkhag (subdistrict) of Trashigang, Trashi Yangtse became a fully fledged dzongkhag (district) in 1993. It borders the Indian state of Arunachal Pradesh, and there is some cross-border trade. The old trade route between east and west Bhutan used to go through Trashi Yangtse, over the mountains to Lhuentse and then over Rodang La (4200m) to Bumthang. This difficult route fell into disuse when the road from Trashigang to Bumthang via Mongar was completed. The district lies at the headwaters of the Kulong Chhu, and was earlier known as Kulong.