One of the great mysteries of Death Valley. A large flat dry mud lake bed or plain (playa) where small dolomite boulders literally Move Across the Plain by themselves. The boulders leave long tracks in the mud - evidencing where they appear to have begun their journey. It is a boulder 'race track' if you will, a popular spectacle that you really have to see to believe. See if you can explain just how it is that these large stones move on their own in all different directions. No one has ever actually seen these rocks move or been able to prove why it is that they do move.