Top 10 Mines in South Africa
South Africa's mining industry is the foundation of its modern economy and the source of its deepest inequalities. The gold and diamond rushes of the 1870s and 1880s drew capital and labour from across the world and were the direct cause of the Anglo-Boer Wars. The migrant labour system that sustained the mines destroyed family and community life across southern Africa. And yet the minerals themselves — the Cullinan diamond, the Witwatersrand gold, the Kimberley diamonds — are objects of extraordinary human significance.
1. Big Hole, Kimberley, Northern Cape
The Kimberley Mine, known as the Big Hole, is the largest hole excavated by hand in the world: 214 metres deep, 463 metres wide, dug by some 50,000 workers between 1871 and 1914. Diamond commodity; closed 1914. The Big Hole is surrounded by the Kimberley Mine Museum, which reconstructs the 1880s mining town with original buildings relocated to the site. A glass platform cantilevered over the hole and a surface heritage precinct make this one of the finest industrial heritage experiences in southern Africa.
2. Cullinan Diamond Mine, Gauteng
The Cullinan mine near Pretoria produced the Cullinan Diamond in 1905 — at 3,106 carats, the largest gem-quality rough diamond ever found. It was subsequently cut into the Great Star of Africa (530.2 carats, now in the Sovereign's Sceptre) and the Second Star of Africa (317.4 carats, now in the Imperial State Crown). Diamond commodity; operated by Petra Diamonds since 2008 from De Beers, active underground to approximately 1,073 metres. Guided underground tours available to the public. The mine is also known as the Premier Mine.
3. Gold Reef City, Johannesburg, Gauteng
Gold Reef City is a heritage theme park and casino on the site of the former Crown Mines, one of the most productive gold mines on the Witwatersrand. Gold commodity; mining operations 1887–1976 at Crown, heritage park opened 1987. An underground tour descends to the 226-metre level in an original shaft and shows gold-pouring demonstrations with authentic equipment. The surface precinct reproduces the Edwardian mining camp with original buildings relocated from the Witwatersrand.
4. Vredefort Dome, Free State and Gauteng (UNESCO)
The Vredefort Dome is the eroded remnant of the world's oldest and largest verified meteorite impact structure, 2.02 billion years old, inscribed as a UNESCO World Heritage Site in 2005. Its relevance to mining heritage is fundamental: the impact created the geological conditions that concentrated the Witwatersrand gold reefs. Gold commodity (indirect); the dome itself is a geological and heritage tourism site south of Johannesburg. The relationship between the impact structure and the gold deposits is explained at the Vredefort Dome Visitor Centre in Parys.
5. TauTona Mine, Carletonville, Gauteng
TauTona was the deepest mine in the world at 3,900 metres from 2008 until it was surpassed by Mponeng. Gold commodity; operated by AngloGold Ashanti, primary production phased out by 2018. No public access. The mine's infrastructure — the hoisting cables, the ventilation requirements, the refrigeration needed to work at depths where rock temperatures exceed 60°C — represents the extreme engineering that Witwatersrand deep mining demands.
6. Mponeng Mine, Carletonville, Gauteng
Mponeng is currently the deepest mine in the world, reaching approximately 4,000 metres at its deepest working levels. Gold commodity; operated by AngloGold Ashanti, active. No public access. The mine employs around 4,000 workers who descend in multi-stage hoisting cycles taking over an hour to reach the working faces. Rock at the deepest levels is cooled by ice slurry pumped from surface.
7. Driefontein Mine, Carletonville, Gauteng
Driefontein (now Gold Fields South Deep combined operation) was among the most productive gold mines in South Africa at peak. Gold commodity; operated by Gold Fields, active underground. No public access. South Deep, at 2,995 metres, holds one of the largest remaining gold reserves in the world, with an estimated 28 million ounces remaining in the ground.
8. Sterkfontein Caves, Maropeng, Gauteng (UNESCO)
The Sterkfontein Caves are part of the Cradle of Humankind UNESCO World Heritage Site (1999). They are limestone caves worked for calcified bone by fossil hunters from 1895 onward and have produced the largest collection of hominin fossils from a single site in the world. Commodity: limestone (surface); palaeoanthropological heritage (primary). Mrs Ples (Australopithecus africanus, 2 million years old) and Little Foot (3.67 million years old) were both found here. Underground tours of the cave system run daily.
9. Pilgrim's Rest, Mpumalanga
Pilgrim's Rest was a gold rush alluvial field from 1873 and a company town of the Transvaal Gold Mining Estates from 1896 to 1972. Gold commodity; closed 1972, entire town declared a National Monument. The Victorian-era townscape is preserved largely intact — the church, the hotel, the miners' cottages — and a surface mine tour operates at the Alanglade House Museum complex. It is the only town in South Africa preserved as a national monument in its entirety.
10. Mapungubwe, Limpopo (UNESCO)
Mapungubwe on the Limpopo River was the centre of a southern African Iron Age kingdom between approximately 900 and 1290 AD that traded gold northward to the Swahili coast and into the Indian Ocean network. Gold commodity (prehistoric); inscribed as UNESCO World Heritage Site in 2003. The golden rhinoceros and other gold foil objects recovered from the royal burial site are displayed in the Mapungubwe Collection at the University of Pretoria.
Western Deep Levels / South Deep, Gauteng
The Western Deep Levels mines (now Kloof-Driefontein Complex under Gold Fields) represent the extreme of Witwatersrand deep mining — operations at depths approaching 4,000 metres with some of the highest seismic risk of any mine in the world. Gold commodity; active. No public access. Seismicity from stress changes in the rock causes rockbursts that have killed miners and driven continuous investment in seismic monitoring and support systems.
South Africa's Mining and its Human History
Any honest account of South African mining must acknowledge the migrant labour system, the compound system, the Pass Laws, and the dispossession of mining land. The 2012 Marikana massacre — 34 striking miners shot by police at a Lonmin platinum mine — is the most recent of many instances of state violence against mine workers. All heritage sites are on the interactive map; the Big Hole and Cullinan are the most rewarding starting points for an international visitor.
The compound system — which housed migrant workers in locked single-sex hostels on or adjacent to mine properties — was developed on the Kimberley diamond mines in the 1880s initially to prevent diamond smuggling. It was subsequently adopted across the Witwatersrand gold mines and became the institutional foundation of the migrant labour system. Workers were recruited primarily from Mozambique, Lesotho, Malawi, Botswana, Zimbabwe, and the South African Bantustans, with circular migration contracts of six to nine months that prevented family accompaniment. The National Union of Mineworkers (NUM), founded in 1982, was one of the most important organisations in the anti-apartheid movement. The history of South African mining labour is told most comprehensively at the MuseumAfrica in Johannesburg (formerly the Museum of South African Rock Art), which holds extensive photographic and oral history collections from the Chamber of Mines archives.
The Witwatersrand gold reefs are approaching their effective economic end. South Deep's 28 million ounces of remaining reserve represent decades of further production, but the depths involved — approaching 3,000 metres — require continuous refrigeration, ground control, and mechanisation that make each ounce progressively more costly. The era of deep Witwatersrand gold mining, which lasted from 1886 to the present, is one of the defining industrial episodes in world history.