Mponeng Gold Mine
CountrySouth Africa
RegionGauteng
Year Opened1981
Size/Depth4 km deep
MineralGold
About Mponeng Gold Mine
The deepest mine in the world at over 4 km below surface. Rock temperatures reach 60C, requiring massive cooling systems. Workers travel over an hour to reach the face. Produces about 250,000 ounces per year. The pressure at 4 km depth is extreme.
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