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The Witwatersrand plateau forms a continental divide, with the run-off to the north draining into the Indian Ocean via the Crocodile and Limpopo rivers, while the run-off to the south drains via the Vaal into the Orange River and ultimately into the Atlantic Ocean. [3] [7] [8]
The rivers which drain the plateau therefore run west, ultimately, via the Orange River, into the Atlantic Ocean. North of the Witwatersrand, where the land starts to slope down towards the north, the drainage is into the Limpopo River and from there into the Indian Ocean.
Early White settlers came in search of mineral resources, hoping to find a second gold-rich Witwatersrand. Zimbabwe lies on a plateau that varies in altitude between 900 and 1,500 m (2,950 and 4,900 ft) above sea level. This gives the area a moderate climate which was conducive to European settlement and commercial agriculture. [18]
The Confidence Reef is notable as the first site of a payable gold discovery on the Witwatersrand, an event that contributed to the establishment of Johannesburg, the "City of Gold.'' The discovery spurred the development of other major gold mines, including the Main Reef in 1886, one of the richest gold-bearing areas in history.
Table Mountain. The geology of South Africa is highly varied including cratons, greenstone belts, large impact craters as well as orogenic belts.The geology of the country is the base for a large mining sector that extracts gold, diamonds, iron and coal from world-class deposits.
Johannesburg is located in the eastern plateau area of South Africa known as the Highveld, at an elevation of 1,753 metres (5,751 ft). The former Central Business District is located on the southern side of the prominent ridge called the Witwatersrand (English: White Water's Ridge) and the terrain falls to the north and south.
In the southern half of Gauteng, the Witwatersrand area is an older term describing a 120 km wide oblong-shaped conurbation from Randfontein in the West to Nigel in the East, named after the Witwatersrand, a geologically and economically important series of low ridges and their associated plateau that greater Johannesburg developed on.
The Walter Sisulu National Botanical Garden, previously known as the Witwatersrand National Botanical Garden, is a 300 hectares (3.0 km 2) botanical reserve in western Roodepoort near Johannesburg. It was formally established in 1982 as the Transvaal National Botanic Gardens, at which time it was the 14th of South Africa's National Botanical ...