Botswana and 30°E. The country is predominantly flat, tending toward gently rolling tableland. Botswana is dominated by the Kalahari Desert, which covers up to 70% of its land surface. The Okavango Delta, one of the world's largest inland deltas, is in the northwest. The Makgadikgadi Pan, a large salt pan, lies in the north. The Limpopo River Basin, the major landform of all of southern Africa, lies partly in Botswana, with the basins of its tributaries, the Notwane, Bonwapitse, Mahalapye, Lotsane, Motloutse and the Shashe, located in the eastern part of the country. The Notwane provides water to the capital through
Tswalu Kalahari Reserve Tswalu Kalahari Reserve The Tswalu Kalahari Reserve is a privately owned game reserve in the Northern Cape, South Africa. It is South Africa’s largest private game reserve, covering an area of over 114,000 hectares. The Tswalu game reserve in the Southern Kalahari was created by Stephen Boler. He bought dozens of farms covering more than a thousand square kilometres to create a hunting reserve. His will specified that Nicky Oppenheimer should have first refusal on Tswalu, and the Oppenheimer family now owns and operates it. Hunting was stopped by the Oppenheimers and man-made structures, farm buildings and fences were removed.