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. PHOTOCOPY OF DRAWING OF POWER PLANT DETAILS OF ROOF TRUSS BOILER UNIT Kennecott Copper Corporation On Copper LOC hhh.ak.photos.p.tif en PHOTOCOPY OF DRAWING OF POWER PLANT DETAILS OF ROOF TRUSS BOILER UNIT Kennecott Copper Corporation On Copper River Northwestern Railroad Kennicott ValdezCordova Census Area AK LOCimage hhh