East Rand Proprietary Mines (ERPM) is a 100-year-old underground gold mining operation on the
Witwatersrand Basin at
Boksburg, to the east of
Johannesburg. The mine employs 2740 people. It was the deepest mine in the world at 3585
meters depth, slightly more than
TauTona mine, also in South Africa, at 3581 meters.
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