The sand cometh...

Sand dune encroaching on the Jeep road along Mud Slough, Nevada. Sand dunes are not common in the deserts of the Great Basin, but they occur in places. The stickery light tan bush is tumbleweed (Russian thistle)--it's one of history's little ironies that this obnoxious invader weed has become an icon of the American west. The inset shows tumbleweeds on the dune slip face.