The Chamdo (Changdu) Prefecture is located in Hengduan Mountains, in the catchment area of three rivers (Jinshajiang River, Lancangjiang River, Nujiang River), in the eastern of the Tibet Autonomous Region and at the junction of Tibet, Sichuan, Qinghai and Yunnan. It is the only way that Sichuan-Tibet Highway and Yunnan-Tibet Highway must pass and is also the main place of the ancient "Tea Horse Road". There are living Khampa Tibetan who are keeping their own tradition and culture. Chamdo (Changdu) is in Tibetan meaning “water confluence”. Zhaqu and Angqu meet into Lancangjiang River in Changdu, which is the origin of the name Chamdo (Changdu).