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 ...
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 ...
The incident occurred at an open-pit gold mine near the village of Danga ... spilled into a tunnel in which women and children were digging out earth to search for leftover gold particles.
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