Petersen, Max S.2007-01-032022-02-032007-01-032022-02-03https://hdl.handle.net/11124/5796Date scanned: 2002-5-21.USBM #59470-A. Power and blasting switch unit. Newport Mine, Pickands, Mather & Company, Ironwood, Michigan. - M. S. Petersen.Held in the Russell L. and Lyn Wood Mining History Archive, Arthur Lakes Library, Colorado School of Mines.Donor: United States Bureau of Mines.The Newport Mine in the Gogebic district near Ironwood, Michigan began operations in 1884. The mine was operated by the Newport Mining Company, then eventually by Pickands, Mather & Company.Rights management statement available at: http://library.mines.edu/digital/rights.htmlPickands, Mather and CompanyIron mines and miningBlastingUnderground miningStillImage