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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
dc.date1948-01-29
dc.date.accessioned2007-01-03T06:01:32Z
dc.date.available2007-01-03T06:01:32Z
dc.descriptionDate scanned: 2002-6-12.
dc.descriptionH-16; Self-contained drilling unit - preparing to drill vertical hole. (See H-14). Portsmouth Mine, The M. A. Hanna Company, Ironton, Minnesota. - Floyd G. Anderson - Jan. 29, 1948.
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.abstractTwo men operate a drilling unit in the pit of the Portsmouth Mine. The Portsmouth Mine is an open pit iron mine in the Cuyuna Range, Minnesota. The Portsmouth Mine opened in 1919 and was operated by several companies before being operated as part of the Portsmouth Group of mines by M. A. Hanna Company starting in 1945. The M. A. Hanna Company was one of the large mining companies that moved into the iron ranges in the early 1900s, consolidating smaller properties and engaging in exploration for other economic deposits. The Company was dissolved in 1965, then resurrected in 1985.
dc.identifierlibimagesU732a
dc.identifier.urihttp://hdl.handle.net/11124/7385
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.subjectIron mines and mining
dc.subjectMiners
dc.subjectMining
dc.subjectOpen pit mining
dc.subjectScenes, snow
dc.titlePortsmouth Mine, self-contained drilling unit preparing to drill vertical hole
dc.typeStillImage


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