Introduction to pictographic stones: These pictographic stones range from huge rock blocks to small gravels and sand grains, from plastically deformed ice troughs and mortars to cirques and cirque ladders, all of which are affected by one side of the ice body. The grinding of the glacier, and the pressure from the ice body on the other side, caused the plastic deformation of the gravel, turning the originally bland stone into a variety of shapes, which is truly a miraculous workmanship.