Introduction to Wanma Jingdu: is located in Ru'ao Town, Xinchang County, 30 kilometers southeast of the county. Here, in a valley between two mountains and a gorge, there is a large stream. The stream is full of round, smooth stones, ranging in weight from nearly a hundred kilograms to tens of thousands of kilograms. They have different colors, ranging from golden yellow to reddish brown to green. Most of them are white. Every rainy day, when I stand on the top of the mountain and look out from the distance, I can see the torrent rushing down, hitting the boulders, white waves splashing, roaring, the sound is like the shouting of thousands of troops, and the shape is like the galloping of thousands of horses, majestic and majestic.