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
Lost in the Desert by Uncle Pete, who partway into the flight has a heart attack and partially loses control of the plane. Thanks to his struggles to land safely in the desert even while suffering the heart attack, the crash is not as serious as it might have been otherwise, and, while Pete himself dies, Dirkie and his small pet dog survive, and the bulk of the story follows Dirkie's various adventures while he struggles to survive the harsh desert conditions, including an encounter with Kalahari Desert Bushmen, who give him help, but abandon him after an unfortunate misunderstanding concerning Dirkie's dog. The