Introduction to Sanjiang Color Screen: Danxia stone wall is the most representative Danxia landform landscape in Laojun Mountain Liming Liguang Scenic Area. The natural stone wall with simple, thick and colorful shapes is like a natural screen, guarding the entrance of the Three Parallel Rivers from the human world to the fairyland. The timeless textures and colors on the color screen are like a rich and colorful picture in a fairyland, narrating dream-like stories and legends.