You have to really want to get to this place because of the 20 something mile of badly rutted road to reach it. The playa surface is tabletop level and very smooth. The mysterious rock movement is theorized to occur when the playa gets wet and high winds move the rocks on the slippery surface leaving the tracks.
NIKON CORPORATION NIKON D800E, f/22 @ 20 mm, ISO 160, No Flash