I have worked on Mine sites for the last 6 years. I have had MSHA new Miner in 2017 and an annual refresher each year since. Mine sites I have worked on are as follows:
North Shore (Babbitt, MN) still go on mine site and have access. It is semi joined with NewRange.
Newrange Copper Nickel (Hoyt Lakes MN) I am the person in charge of health and safety for the mine site.
Red Dog Mine (Alaska) worked there for two years