View of Open Pit


View of Open Pit

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This is a view of part of the Empire Mine open pit. At the time this photo was taken, the pit was 1.6 miles by 0.8 miles and 910 feet deep. They are mining the Palaeoproterozoic Negaunee Iron Formation. Special thanks to Cleveland Cliffs for allowing me and my students onsite.

Photo taken: July 2005

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Photo added: 22nd May 2010