Introduction to Palong Zangbo: Palong Zangbo originates from Ranwu Lake in Ranwu Township, Basu, and is located in Linzhi County in eastern Tibet. It is mainly formed by the confluence of two secondary tributaries, and finally flows into the Yarlung Zangbo Grand Canyon, the world's largest canyon, between Menzhong Village and the Zaqu River. Parlung Zangbo has a total length of 266 kilometers. It is the main river channel of Parlung Canyon and the largest tributary among the five major tributaries of Brahmaputra. It runs through lofty mountains and is a typical mountain river.