Footprints and lizard tracks on the Mesquite flat sand dunes in Death Valley which is the lowest, hottest, driest place in the USA, with an average annual rainfall of around 2 inches, some years it does not receive any rain at all.

california usa america death valley desert drought hot dry low heat national park preserved protected mud cracks lake bed dessicated barren mountain mountain range geology rocks sand sandy tumble weed tumbleweed sand dunes mesquite falt ripples ripple marks sand ripples crest dune crest windswept wind movement wind erosion footsteps tracks slumping movement lizard lizard tracks