Throughout southern Africa, the a long line of broken cliffs and rock outcrops, called the Great Escarpment, separates coastal deserts from high-elevation inlands, with land levels rising swiftly.
Narrow cordons of coastal dunes stretch for hundreds of kilometers along Argentina’s coast, including the Médano Blanco dunes near the arid and windy border of Patagonia.
Acquired September 18, 2009, this true-color image of Laguna Ojo de Liebre on Baja California shows the margins of industrialized salt works in the east and a famed marine mammal wintering site in the west.
Acquired June 26, 2011, this natural-color image shows the deserts along the coastline of Namibia; most of that land has been protected by the government.