Introduction to the Grand Canyon (Yinchang Valley): The Grand Canyon (Yinchang Valley) scenic spot is the essence of the Longmen Mountain Scenic Area. The valley is 50 kilometers long. The scenic area has towering peaks, numerous mountains, deep canyons, and numerous strange rocks. . The roaring waterfalls and springs, the magical and unpredictable rainbow phantom, and the winding and dangerous suspension bridge plank road are the longest tourist plank road in the national scenic spots. It is a unique sight in western Sichuan and is an excellent summer resort.