“The Mir Mine is an inactive, open-pit diamond mine located in Mirny, Eastern Siberia, Russia. The mine is 1,722 feet (525 m) deep and has a diameter of 3,900 feet (1,200 m), making it one of the largest excavated holes in the world. Active for 44 years, the mine had an output of 10 million carats of diamond per year during peak production in the 1960s.”“The Mir Mine is an inactive, open-pit diamond mine located in Mirny, Eastern Siberia, Russia. The mine is 1,722 feet (525 m) deep and has a diameter of 3,900 feet (1,200 m), making it one of the largest excavated holes in the world. Active for 44 years, the mine had an output of 10 million carats of diamond per year during peak production in the 1960s.”
“The Mir Mine is an inactive, open-pit diamond mine located in Mirny, Eastern Siberia, Russia. The mine is 1,722 feet (525 m) deep and has a diameter of 3,900 feet (1,200 m), making it one of the largest excavated holes in the world. Active for 44 years, the mine had an output of 10 million carats of diamond per year during peak production in the 1960s.”
Roberto Greco

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