The Historic American Engineering Record Recording
Project produced this map in the early 1980s fro the National Park Service and
the Cordova Historical Society. It shows the relationship of all the mines to
the Kennecott mill site at the end of the railroad. You can also see a wagon
trail which continued on to the base of the Erie Mine. The two main trams were
the Bonanza and the Jumbo--both approximately 16,000 feet long.
The Bonanza Ridge in this map runs roughly left to right with the Mother Lode on
the other side of the ridge--facing east. All the other mines faced west.
Mother Lode, which started as a separate company, had its own tram line to a
base point on McCarthy Creek. Erie and Glacier mines also had trams, although
the Erie tram was only for men and supplies. All the Erie ore was sent through a
long cross cut tunnel to the Jumbo incline shaft where it was trammed to the
surface and then sent down the hill to the back of the Kennecott mill.
