This diamond mine in eastern Siberia (Mirny, to be exact) is so deep that the surrounding "air zone... is closed for helicopters...
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Showing posts with label holes. Show all posts
Showing posts with label holes. Show all posts
Massive Man Made Holes
One of the world’s biggest holes is located in Russia. The giant hole is actually a diamond mine in Eastern Siberia near the town Mirna ....
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