Gauteng, province, northeastern South Africa. It consists of the cities of Pretoria, Johannesburg, Germiston, and Vereeniging and their surrounding metropolitan areas in the eastern part of the Witwatersrand region. Gauteng is the smallest South African province. It is bordered by the provinces of Limpopo on the north, Mpumalanga on the east, Free State on the south, and North West on the west. Until 1994 Gauteng (called Pretoria-Witwatersrand-Vereeniging in 1994–95) was part of the former Transvaal province. The provincial capital is Johannesburg.
Gauteng lies on the great interior plateau of Southern Africa (the Highveld) and stretches northward from the Vaal River. South of Pretoria there is rolling grassland, and to the north of the city is bushveld. The province’s climate is warm and temperate, and rainfall averages 26 inches (650 mm) annually.
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