Namibia_Nov042014_0207
Giant sand dune (among the largest in the world found here) inside Namib-Naukluft National Park near Sossusvlei, Namibia in southern Africa. Called the "Red Desert" for the color of the sand (related to high content of iron oxides), scientists say it is perhaps the oldest desert in the world, estimated to have formed more than 250 million years ago. The process is ongoing, with sands blowing in from the neighboring Kalahari Desert literally swallowing up entire mountain ranges. It is truly a wonder of the world. The dunes are identified by numbers, rather than names, by park rangers.