Portsmouth Mine, self-contained drilling unit preparing to drill vertical hole
| dc.date | 1948-01-29 | |
| dc.date.accessioned | 2007-01-03T06:01:32Z | |
| dc.date.accessioned | 2022-02-03T09:21:54Z | |
| dc.date.available | 2007-01-03T06:01:32Z | |
| dc.date.available | 2022-02-03T09:21:54Z | |
| dc.identifier | libimagesU732b | |
| dc.identifier.uri | http://hdl.handle.net/11124/7382 | |
| dc.description | Date scanned: 2002-6-12. | |
| dc.description | H-17; 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.description | Held in the Russell L. and Lyn Wood Mining History Archive, Arthur Lakes Library, Colorado School of Mines. | |
| dc.description | Donor: United States Bureau of Mines. | |
| dc.description.abstract | 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.publisher | Colorado School of Mines. Arthur Lakes Library | |
| dc.rights | Rights management statement available at: http://library.mines.edu/digital/rights.html | |
| dc.subject | M. A. Hanna Company | |
| dc.subject | Iron mines and mining | |
| dc.subject | Miners | |
| dc.subject | Mining | |
| dc.subject | Open pit mining | |
| dc.subject | Scenes, snow | |
| dc.title | Portsmouth Mine, self-contained drilling unit preparing to drill vertical hole | |
| dc.type | StillImage | |
| dc.contributor.institution | Anderson, F. G. | |
| dc.contributor.institution | Arthur Lakes Library | |
| dc.contributor.institution | Russell L. and Lyn Wood Mining History Archive | |
| dc.contributor.institution | United States. Bureau of Mines |
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