The Sliding Rocks of Racetrack Playa MysteryA sliding rock that has left a long track across the surface of Racetrack Playa. Some tracks are hundreds of feet long! (See below for several more sliding rock photos.) Image copyright iStockphoto / Steve Geer. The Sliding Rocks Mystery One of the most interesting mysteries of Death Valley National Park is the sliding rocks at Racetrack Playa (a playa is a dry lake bed). These rocks can be found
