How were the Yellow River murals formed?

The Yellow River murals, also known as the Hundred-mile Water Erosion Reliefs of the Yellow River, are located in the Qikou section of the Yellow River Grand Canyon in Shanxi and Shaanxi. They are sand cliffs on the cliffs on the east bank of the Yellow River that have been washed, weathered and sun-dried by the Yellow River water for hundreds of millions of years. The natural wonders formed.

According to the tour guide, the "Yellow River Mural" was accidentally discovered by a teacher from Shanxi Academy of Fine Arts while sketching along the Yellow River. At that time, he took some photos from a distance. When he returned home and enlarged the photos, he discovered that the rocks formed wonderful natural murals, and Lianhu was a gift from nature.