Theres a barren lake bed in the Death Valley National Park in California defined by its many long serpentine tracks, etched into the landscape by massive .\r<br>\r<br>Scripps Oceanography paleooceanographer Richard Norris describes the phenomenon of sliding rocks in Death Valley. Read the full story at .\r<br>\r<br>For years, enormous stones have been moving across the Racetrack Playa of Death Valley National Park, leaving engraved trails in the muddy surface behind.\r<br>\r<br>For decades, scientists have been trying to solve Death Valleys mystery of the moving stones. Now, two scientists say they have figured out what makes the .
