13 September 2018. Sunday Sep. 9, 2018 will go down in Chile’s copper state miner Codelco’s history of as one the most important days of its Chuquicamata mine's 103 years of existence. This, because it marked the last blast at the bottom of the open pit operation, expected to transition to underground block cave mining by mid-2019.

MINING.COM

Chuquicamata-last-time

At industryabout.com:

Chuquicamata

 

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