Pictures 5 The Kennecott Copper Mines, McCarthy Alaska Tweet Do you have an update on the current status of this structure? Please tell us about it in the comments below. 1982 CONCENTRATION MILL SEPARATING TABLES 1982 CONCENTRATION MILL BALL MILL 1982 CONCENTRATION MILL SETTLING VATS 1982 CONCENTRATION MILL BAGGER ROOM 1982 LINES FROM CONCENTRATION MILL TO LEACHING PLANT, LOOKING SOUTH 1982 LINES FROM CONCENTRATION MILL TO LEACHING PLANT, LOOKING EAST