Johnson, John A.2007-01-032022-02-032007-01-032022-02-03https://hdl.handle.net/11124/7474Date scanned: 2002-6-18.S-18; Blasting 44 vertical holes 15 to 25 feet deep, using 25- and 60-percent gelatin dynamite and primacord. Virginia Mine, Snyder Mining Company, Eveleth, Minnesota. - J. A. Johnson - August 21, 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.Blasting is shown at the Virginia Mine. The Virginia Mine is an open pit iron mine in the Mesabi Range, Minnesota. The Mine started producing in 1910 and was operating into the early 1950s.Rights management statement available at: http://library.mines.edu/digital/rights.htmlSnyder Mining CompanyBlastingIron mines and miningOpen pit miningStillImage