2007-01-032022-02-032007-01-032022-02-03http://hdl.handle.net/11124/7440Date scanned: 2002-6-18.NG-12; Loading gypsum into 2-ton side-dump Ford trucks by 2-yard capacity P&H electric shovel. National Gypsum Company, National City, Michigan. - F. G. Anderson - December 7, 1947.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 National Quarry (Tawas Quarry, Tawas Mine?) is an open pit gypsum mine near National City, Michigan operated by the National Gypsum Company. The mine was an important gypsum producer in Michigan for decades. The National Gypsum Company began working the gypsum deposit here in 1925 and the existing town was renamed National City.Rights management statement available at: http://library.mines.edu/digital/rights.htmlNational Gypsum CompanyGypsum industry and tradeMiningOpen pit miningVehiclesStillImage