Q. "Chuquicamata", the world's biggest/largest open-pit copper mine, is located in which nation?
Answer: Chile
Notes: Chuquicamata, the world's largest open-pit copper mine by excavated volume, is located in the Antofagasta region of Chile. This mine is now owned and operated by Codelco, a Chilean state enterprise. This mine was opened in 1882. It contains porphyry copper deposits.

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