The mysterious rocks which race across the dry lakebed known as the Racetrack in Death Valley 5

lakebed panamint desert barren desolate nevada dryness lake-bed dry landscape geological dirt mountains geology flat california mud mountain 1080p remote background rocks lonely lake north playa stone racetrack travel northern america moving nature rock pattern cracked running brown stones concept national sky texture clouds hot mysteriously death park sliding rolling seasonally phenomenon puzzle states summer united bed blue black sailing