[Strange Object] "Crazy Stone" can walk by itself

In some corner of the world, the stones there are crazy enough to "walk" by themselves, and this is strange enough! ?

Let's focus on a dry road in Death Valley, USA (this place was a lake a long time ago), and today's protagonist was born here. These various sized and shaped stones share a common characteristic: they move on their own! And they leave a deep trail along the route they pass. What is most puzzling is that their directions of movement are also different. Some go straight forward, while others move circuitously. All these strange phenomena have also attracted a large number of curious people to go and see for themselves.