Western Sahara, Arabic Al-Ṣaḥrāʾ al-Gharbiyyah, formerly (1958–76) Spanish Sahara, territory occupying an extensive desert Atlantic-coastal area (97,344 square miles [252,120 square km]) of northwest Africa. It is composed of the geographic regions of Río de Oro (“River of Gold”), occupying the southern two-thirds of the region (between Cape Blanco and Cape Bojador), and Saguia el-Hamra, occupying the northern third. It is bounded by the Atlantic Ocean on the west and northwest, by Morocco on the north, by Algeria for a few miles in the northeast, and by Mauritania on the east and south. Pop. (2007 est.) 489,000. Western Sahara is