The west gate of Quchao Gorge. At the entrance of Shaanxi, cliffs stand on both sides, hundreds of feet high and less than 100 meters wide, which is like a portal, hence the name. The water in the upper reaches of the Yangtze River enters the canyon through this gate; The water depth in the gorge is swift, and the narrowest part of the river is less than 50 meters. The waves are raging and roaring, which is heartbreaking. Known as "Kuimen is the best in the world". Qutangxia is also called Kuimen because it is the gateway to the east of Sichuan. Song Luyou's "Eight Endings of Chinese New Year's Feelings" No.4: "Remember that at the beginning of the first month of Kuimen, bamboo branches danced on their shoulders."