Introduction to Maquan River: Maquan River, the source of the Brahmaputra River, gets its name from the mouth that looks like a neighing horse and flows straight down. The average altitude is more than 5,200 meters. The water flow is gentle, lakes and branches are developed in the center of the river, and many waterbirds inhabit the large swamps on both sides of the river. Maquan River runs between the Himalayas in the south and the Gangdise Mountains in the north. The valley is wide, generally 10 to 30 kilometers long. The Maquan River in the wide valley is like a silver ribbon, spreading at the foot of the misty snow-capped mountains. The largest tributary of the Maquan River, Chaiqu, winds and intersects countless sparkling and dazzling small lakes, all the way to the ribbon. . The snow-capped mountains, ribbons, and lakes are all spread out on an endless stretch of grass that looks like emerald green tapestries. This beautiful picture is a portrayal of the Maquan River area in the upper reaches.