| Permit application for utility tunnel deemed complete by US Army Corps of Engineers | ||
| May 14, 2020 | ||
| Review panel in Michigan upholds mining permit for Back Forty Mine | ||
| November 27, 2019 | ||
| Michigan Tech resurrecting mining engineering degree program | ||
| April 8, 2019 | ||
| Surface water permit issued for Back Forty Project in Michigan | ||
| April 11, 2017 | ||
| Land swap in Michigan clears way for Gaymont's limestone mine | ||
| March 20, 2015 | ||
| Operations begin at new Upper Peninsula mine | ||
| September 24, 2014 | ||
| Road to Rio Tinto's mine in Michigan denied | ||
| January 7, 2013 | ||
| Judge allows construction of nickel mine to continue | ||
| July 27, 2012 | ||
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