World deepest (4,1 km below surface) mine is Mponeng Gold Mine, South Africa

Mining, Underground, Underground mining, World’s deepest, World’s most, Source

World deepest (4,1 km below surface) mine is Mponeng Gold Mine, South Africa

Mining, Underground, Underground mining, World’s deepest, World’s most

World deepest (4,1 km below surface) mine is Mponeng Gold Mine, South Africa

Mining, Underground, Underground mining, World’s deepest, World’s most