A dry lake bed, called a playa: the flattest of all natural surfaces. Fine mud and silt, eroded from the surrounding mountain, compose the playa. Water washes…
The rocks on this ancient lake bed move.
The moving rocks are something of a mystery. Scientists theorize that when this ancient lake bed - or playa - gets…
Fine mud and silt, eroded from the surrounding mountain, compose the playa. Water washes…