Introduction to Zedang: Zedang is located in the middle basin of the Brahmaputra River. It has a mild climate, abundant rainfall, and a wide river valley. It is known as the granary of Tibet. Zedang is also the birthplace of Tibetan culture. There is Yongbulakang, the first palace in Tibet built by the first Tubo king Nietri Zanpu, and Changzhu Temple, the former residence of Princess Wencheng.