Williams, M. L.2007-01-032022-02-032007-01-032022-02-03https://hdl.handle.net/11124/7247D.C.-9; Portable 110-volt generator driven by 2-cylinder Wisconsin gas engine. Used for operating coal drills. Indianhead Strip Mine, Dakota Collieries Company, Zap, Mercer County, North Dakota. - February 1948 - M. L. Williams.Date scanned: 2002-6-26.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 Indianhead strip coal mine near Zap, North Dakota, was operated by Dakota Collieries Company and successors.Rights management statement available at: http://library.mines.edu/digital/rights.htmlDakota Collieries CompanyCoal mines and miningMiningScenes, snowStrip miningStillImage