LARGE basin-like plain of the interior plateau of Southern Africa.It occupies almost all of Botswana, the eastern third of NAMIBIA, and the northernmost part of Northern Cape province in South Africa.In the southwest, it merges with the Namib, the coastal desert of Namibia.The Kalahari’s longest north-south extent is roughly 1,600 kilometres.It is the greatest east-west distance is about 600 MILES.The area has been estimated at some 360,000 square miles (930,000 square kilometres).It is 3,000 feet (900 metres) or more above sea level.DesertLocationGreat BasinNorth AmericaThar DesertThe northwestern part of the Indian subcontinent SaharaNorth Africa