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Botswana is a landlocked country located in Southern Africa, north of South Africa. Botswana occupies an area of 581,730 square kilometres (224,610 sq mi), of which 566,730 km2 (218,820 sq mi) are land. Botswana has land boundaries of combined length 4,347.15 kilometres (2,701.19 mi), of which the constituent boundaries are shared with Namibia, for 1,544 km (959 mi); South Africa 1,969 km (1,223 mi); Zimbabwe, 834 km (518 mi) and Zambia, 0.15 km (0.093 mi). Much of the population of Botswana is concentrated in the eastern part of the country.
The Kalahari Desert is a large semi-arid sandy savanna in Southern Africa extending for 900,000 square kilometres (350,000 sq mi), covering much of Botswana, and parts of Namibia and South Africa.
The Okavango River, also known as the Cubango River, is a river in southwest Africa. It is the fourth-longest river system in southern Africa, running southeastward for 1,600 km (1,000 mi). It begins at an elevation of 1,300 metres (4,300 ft) in the sandy highlands of Angola. Farther south, it forms part of the border between Angola and Namibia, and then flows into Botswana. The Okavango does not have an outlet to the sea. Instead, it discharges into the Okavango Delta or Okavango Alluvial Fan, in an endorheic basin in the Kalahari Desert.
Lake Makgadikgadi was a paleolake that existed in what is now the Kalahari Desert in Botswana from 2,000,000 years BP to 10,000 years BP. It may have once covered an area of from 80,000 to 275,000 km2 and was 30 m deep. The Okavango, Upper Zambezi, and Cuando rivers once all emptied into the lake. Its remains are seen in the Makgadikgadi salt pans, one of the largest salt pans in the world.
The Boteti River is a natural watercourse in Botswana. It derives flow from the core Okavango Delta through the Thamalakane River in Maun.
Ghanzi is a district in western Botswana, bordering Namibia in the west and extending east into much of the interior of the country. The district's administrative centre is the town of Ghanzi. Most of the eastern half of Ghanzi makes up the Central Kalahari Game Reserve. The human population at the 2001 census was 43,370, less populous than that of any other district in Botswana. Ghanzi's area is 117,910 km².
The North-East District is one of the administrative districts of Botswana. Its capital is Francistown. In 2011, North-East had a population of 60,264 people. The district is predominantly occupied by Kalanga-speaking people, the BaKalanga. The district is administered by a district administration and district council, which are responsible for local administration.
The North-West District or Ngamiland is one of the first-level administrative subdivisions of Botswana. For census and administrative purposes Ngamiland is subdivided into Ngamiland East, Ngamiland West and Ngamiland Delta (Okavango). It is governed by a District Commissioner, appointed by the national government, and the elected North-West District Council. The administrative centre is Maun.
The Makgadikgadi Pan, a salt pan situated in the middle of the dry savanna of north-eastern Botswana, is one of the largest salt flats in the world. The pan is all that remains of the formerly enormous Lake Makgadikgadi, which once covered an area larger than Switzerland, but dried up tens of thousands of years ago. Recent studies of human mitochondrial DNA suggest that modern Homo sapiens first began to evolve in this region some 200,000 years ago, when it was a vast, exceptionally fertile area of lakes, rivers, marshes, woodlands and grasslands especially favorable for habitation by evolving hominins and other mammals.
The Kalahari Basin, also known as the Kalahari Depression, Okavango Basin or the Makgadikgadi basin, is an endorheic basin and large lowland area covering approximately 725,293 km2 covering most of Botswana and Namibia, as well as parts of Angola, South Africa, Zambia, and Zimbabwe. The outstanding physical feature in the basin, and occupying the centre, is the large Kalahari Desert.
Kubu Island (Ga'nnyo) is a dry granite rock island located in the Makgadikgadi Pan area of Botswana. The island is located a few kilometers away from Orapa and Letlhakane mining towns and can be accessed through Mmatshumo in the Boteti district. The entire island is a national monument, and is considered a sacred site by the indigenous people of the area.
Nata is a village in Central District of Botswana. It is located in the northern part of the district, and is served by Nata Airport. The population was 6,802 at the 2011 census. The village of Nata lies along the Nata River, which carries its rainy season flow to the Makgadikgadi Pans, a seasonal hypersaline lake.
Mosetse is a village in Central District of Botswana. It is located along the road from Francistown to Nata. The population was 1,661 in 2001 census. Mosetse lies along the Mosetse River, which ultimately discharges to the Sua Pan, a part of the Makgadikgadi Pan.
The Ntwetwe Pan is a large salt pan within the Makgadikgadi region of Botswana. The Ntwetwe is one of three large pans within the Makgadikgadi, the other two being Nxai Pan and Sua Pan. Ntwetwe Pan is now a seasonal lake with filling occurring in the rainy season. Ntwetwe was first described to the European world by David Livingstone, pursuant to his explorations in this region. Significant archaeological recoveries have occurred within the Nwetwe Pan, including Stone Age tools from people who lived in this area, in an earlier time of prehistory when a large year round lake occupied the Nwetwe Pan area within the Makgadikgadi.
The Sua Pan or Sowa Pan is a large natural topographic depression within the Makgadikgadi region of Botswana. It is located near the village of Sowa, whose name means salt in the language of the San. The Sua salt pan is one of three large pans within the Makgadikgadi, the other two being Nxai Pan and Nwetwe Pan.
The Nata River or Manzamnyama River is a natural watercourse in Southern Africa. It is an ephemeral river flowing in Zimbabwe and Botswana. It has a length of 330 km from its source to mouth, 210 km in Zimbabwe and 120 km in Botswana. Its total catchment area is 24,585 km2. The river originates in Sandown, a small farming town located on the Zimbabwean central watershed 50 km south west of Bulawayo and ends in the Makgadikgadi Pans in Botswana. There is no outlet from the salt pans which can be considered as the “dead sea” of the south. The upper reaches of the river are located in a commercial farming area where good environmental and farming practices have resulted in the river experiencing very little siltation/sedimentation. Impressive sedimentation starts occurring about 65 km along the river course marking the beginning of a 90 km stretch in Zimbabwe where the river passes through communal farming areas. It is on this stretch where the sand-abstraction potential of the river is realised and communities rely on the sand river water for domestic, farming and livestock purposes. Within the country of Botswana the Nata River is a source of water to the ephemeral wetlands of the Makgadikgadi Pans, where a number of species of limited distribution thrive. Specifically the Nata River discharges to Sua Pan, draining parts of eastern Botswana and southwestern Zimbabwe.
The Mosetse River is a natural watercourse in Botswana. Within the country of Botswana the Mosetse is a source of water to the ephemeral wetlands of the Makgadikgadi Pans, where a number of crustacean species of limited distribution thrive. More specifically the Mosetse River discharges to Sua Pan, draining parts of eastern Botswana.
The Mosope River is a natural watercourse in Botswana, passing through the village of Moshupa. The Mosope River joins the Kolobeng River to form Metsimotlhaba which joins Notwane River around Mochudi, and continues to the Limpopo River.
The Lepashe River is a natural watercourse in Botswana. It shares its name with the village of Lepashe, through which the river flows. The Lepashe River discharges to the Sua Pan. There are significant gravel resources along some reaches of the Lepashe River.
References
- Botswana National Government Constitution: Volume I (2008)
- Ann Hulsmans, Sofie Bracke, Kelle Moreau, Bruce J. Riddoch, Luc De Meester and Luc Brendonck, Dormant egg bank characteristics and hatching pattern of the Phallocryptus spinosa (Anostraca) population in the Makgadikgadi Pans (Botswana), Hydrobiologia, Springer Netherlands, Volume 571, Number 1 / November, 2006 ISSN 0018-8158 (Print) 1573–5117, pages 123-132