Re: HOW DEEP INTO THE EARTH HAS THE FURTHEST PERSON EVER BEEN (MINNING) The deepest mine - at least the deepest I can find any record of - is the Western Deep Levels gold mine operated by the Anglogold company in South Africa. It's depth is 12,300 feet, or 2.33 miles. The gold ore is recovered by actual miners at this depth, so they would be the deepest anyone has been in the earth. A particular problem in deep mining is that the earth gets hotter as you dig deeper.