When digging a pit, one way to prevent the walls ... is to make the hole three times wider than its depth. The deepest open pit in the Earth is the Bingham Canyon Mine in Utah, which was dug ...

The lawsuit against the Stibnite project asks the U.S. District Court of Idaho to invalidate its federal approvals for the ...

Thirteen artisanal miners, including women and three children, were killed in southwest Mali on Wednesday after a tunnel in which they were digging for gold flooded, the national union of gold ...