Most people picture mining as digging a hole and pulling something shiny out of the ground. But this place doesn’t just go down a bit; rather , it drops so far beneath the Earth’s surface that the ...

The Savuka Gold Mine in South Africa is 3.7 km deep and held several billion tons of gold ore.

Should you have feedback on this article, please complete the fields below. Please indicate if your feedback is in the form of a letter to the editor that you wish to have published. If so, please be ...