On foot, Yubeng Ninong has to pass a section of the Lancang River Grand Canyon, a turn, the Lancang River appears in front of you, the cliff landslide on the left, and the river water on the right is green. On the side of the new road is the Lancang River, which shuttles through the mountains like a blue ribbon. The Lancang River Grand Canyon is not only famous for its depth and length, but also known for its rapid flow. In winter, it is clear and fast, and in summer, it is turbid and sloppy. The annual runoff of the river is 8.38 billion cubic meters. The gap in the flow length of 150 kilometers is 504 meters, which is3.4% lower. The narrow river is snarling and the sound of the water is spectacular. Such a steep mountain and valley terrain, such a strange and wonderful geographical structure, is rare in the world. When I arrived at Ninong Bridge, I saw Ninong Rural from afar, and the Lancang River under Ninong Bridge flowed through Ninong Rural clear and rapid.