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By Digging a 5 Km Long and 1 Km Deep Pit at an Altitude of 2,850 Metres, the Chileans Literally Had to Pass Under Their Own Mine.

Summary by SciencePost
At 2,850 metres above sea level in the Atacama desert, Chuquicamata became so deep that it had to be reversed: to move from open-pit mining to an underground mine under the old crater. A technical and symbolic challenge that extends the life of this mining giant for another 50 years. More
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At 2,850 metres above sea level in the Atacama desert, Chuquicamata became so deep that it had to be reversed: to move from open-pit mining to an underground mine under the old crater. A technical and symbolic challenge that extends the life of this mining giant for another 50 years. More

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SciencePost broke the news on Tuesday, September 8, 2026.
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