Dwyer, Charles F.2007-01-032022-02-032007-01-032022-02-03https://hdl.handle.net/11124/8670Date scanned: 2004-06-07.Held in the Russell L. and Lyn Wood Mining History Archive, Arthur Lakes Library, Colorado School of Mines.Yan Chair - Keystone.color photographsIn copyright - non-commercial use permitted (http://rightsstatements.org/vocab/InC-NC/1.0/).Yan Lift EngineeringPassenger ropewaysRopewayStillImage