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This can be answered in two ways.

  • Man has gone "in person" as deep as the deepest mine, TauTona in Carletonville, South Africa at 3.9 kilometres.
  • Boreholes have been made even deeper.The present holder of this record is the Kola Superdeep Borehole in Russia. It reached 12.262 kilometres in 1989.
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∙ 15y ago

What else can I help you with?