World's Deepest Underground Mine

Mponeng gold mine

Near Carletonville, South Africa · Mponeng gold mineSatellite view · Google Maps · GautengSatellite view · Google Maps

Mponeng gold mine in South Africa, operated by Harmony Gold, has developed underground workings reaching 3,841 m below surface according to its 2026 reporting, and is described by the operator as the world's deepest mine.