Actually, I'd go to and check the "Local" section of your nearest library!
For the history of mining in the State!
There might even be, should be, a Mining Department within the State Govt!
As there is out in the western states!
There was a project, funded by the U.S. Govt, just recently, to find and list all open mines!
There should be a list of them, with the actual Locations of the mines, within your State Govt!