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dc.date1947-10-20
dc.date.accessioned2007-01-03T06:01:31Z
dc.date.accessioned2022-02-03T09:24:04Z
dc.date.available2007-01-03T06:01:31Z
dc.date.available2022-02-03T09:24:04Z
dc.identifierlibimagesU729a
dc.identifier.urihttp://hdl.handle.net/11124/7380
dc.descriptionDate scanned: 2002-6-12.
dc.descriptionH-12; Blasting ore. Blast consisted of 10-17 to 20 ft. deep holes in a soft ore with a seam of hard ore about 2-1/2 ft. thick running through it, charged with 1,500 lbs. of 40% strength Hercules Gelamite B. Holes spaced 15 to 20 ft. apart. Wabigon Mine, The M. A. Hanna Company, Buhl, Minnesota. - F. G. Anderson - Oct. 20, 1947.
dc.descriptionHeld in the Russell L. and Lyn Wood Mining History Archive, Arthur Lakes Library, Colorado School of Mines.
dc.descriptionDonor: United States Bureau of Mines.
dc.description.abstractThe image shows a blast at the pit of the Wabigon Mine, partially obscured by the shadow of the pit wall. The Wabigon Mine is an open pit iron mine in the Mesabi Range, Minnesota. The Mine was operated by the M. A. Hanna Company intermittently from 1925 into the 1950s. The M. A. Hanna Company was one of the large mining companies that moved into the iron area around the Great Lakes in the early 1900s, consolidated smaller properties, and engaged in exploration for other economic deposits. The Company was dissolved in 1965, then resurrected in 1985.
dc.publisherColorado School of Mines. Arthur Lakes Library
dc.rightsRights management statement available at: http://library.mines.edu/digital/rights.html
dc.subjectM. A. Hanna Company
dc.subjectBlasting
dc.subjectIron mines and mining
dc.subjectOpen pit mining
dc.titleWabigon Mine, blasting
dc.typeStillImage
dc.contributor.institutionAnderson, F. G.
dc.contributor.institutionArthur Lakes Library
dc.contributor.institutionRussell L. and Lyn Wood Mining History Archive
dc.contributor.institutionUnited States. Bureau of Mines


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