Thanks RC-- and how about Jackie-- Kentucy is Coal mining country here on the east coast*-- and Sparteye-- with all the NYer's in MI-- what do you call the waste stuff out side from a mine (copper, right? Not big ones like the defunct Anaconda but copper?)

*the western US has much more abundant supplies of coal, but kentucy has mostly anthracite-- and very low sulfur anthracite-- at that.

Re:we have (had, pre-Thatcher!) more coal mines than any other sort.
Tin mines, too? Isn't that what brought the Roman's? Tin? to make copper (found on several places in europe) into bronze-- and tin is fairly rare on continent-- and found in Wales and Cornwall?