Sailing Stone coming towards me on the Racetrack dry lake in Death Valley (California)
This particular rock has not moved since at least 2007, based on other photos of it at the exact same location 4 years ago.
Sailing stones are rocks that move in long tracks on the smooth and perfectly flat surface of a dry lake, without human or animal intervention. The rocks are most likely propelled by strong winds while entrapped in floating ice sheets (or icebergs), after winter rains flooded the dry lake and made the mud soft and slippery.
For more photos and information about the Racetrack sailing stones, go to my Sailing Stones photo series.
This photo was processed in True Tone HDR and Tone Mapping from a single RAW exposure.