Kalahari Desert northwest, forming marshes that are rich in wildlife. Ancient dry riverbeds—called omuramba—traverse the central northern reaches of the Kalahari and provide standing pools of water during the rainy season. A semi-desert, with huge tracts of excellent grazing after good rains, the Kalahari supports more animals and plants than a true desert, such as the Namib Desert to the west. There are small amounts of rainfall and the summer temperature is very high. The driest areas usually receive of rain per year, and the wettest just a little over . The surrounding Kalahari Basin covers over extending further into Botswana, Namibia
Western Desert (Egypt) Western Desert (Egypt) The Western Desert of Egypt is an area of the Sahara which lies west of the river Nile, up to the Libyan border, and south from the Mediterranean sea to the border with Sudan. It is named in contrast to the Eastern Desert which extends east from the Nile to Red Sea. The Western Desert is mostly rocky desert, though an area of sandy desert, known as the Great Sand Sea, lies to the west against the Libyan border. The desert covers an area of 262,800 sq miles (680,650 km) which is two-thirds of the land area