In one of the hottest and driest parts of the world, there is a phenomenon that is most unexpected. At a remote dry lake bed in the world-famous Death Valley area in the United States, large rocks are seen to be in motion.
They slowly slide over the desert floor, with long tracks that do not seem to ever lift. The incredible movement of these rocks in the Racetrack Playa area has been a phenomenon not understood by scientists as well as tourists.
