The world's 10 largest holes - eastern Siberia, Russia

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작성자 관리자 작성일21-10-11 11:23 조회131회 댓글0건


Aug 2, 2011: Images of the world's 10 largest excavations and natural chasms

Mirny Mine is a disused open pit diamond mine located in eastern Siberia, Russia. It is 525m deep, 1.2km across and is so vast that the airspace over it is closed to air traffic because of the risks posed by downward drafts the flow in to the mine. The mine was discovered in 1953 and, at one point, the mine was producing 10,000,000 carats of diamonds (2,000kgs) annually. 


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