The mysterious rocks which race across the dry lakebed known as the Racetrack in Death Valley 4

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