File:Green Springs iron ore seam sign.jpg: Difference between revisions
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(Photograph of the exposed road cut for Green Springs Highway at Walker's Gap showing the Iron Ore Seam signs donated by Erskine Ramsay in 1949. From Thomas A. Simpson (1965) "[http://pubs.usgs.gov/pp/0473c/report.pdf Geologic And H...) |
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Latest revision as of 18:20, 15 March 2020
Photograph of the exposed road cut for Green Springs Highway at Walker's Gap showing the Iron Ore Seam signs donated by Erskine Ramsay in 1949.
From Thomas A. Simpson (1965) "Geologic And Hydrologic Studies In The Birmingham Red-iron-ore District, Alabama" Geological Survey Professional Paper 473-C. Washington D.C.: Government Printing Office, p. C4
This work is in the public domain | |
This work was created by the United States Government and is in the public domain. |
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current | 18:20, 15 March 2020 | 800 × 470 (129 KB) | Dystopos (talk | contribs) | ||
14:32, 22 May 2019 | 829 × 467 (223 KB) | Dystopos (talk | contribs) | Photograph of the exposed road cut for Green Springs Highway at Walker's Gap showing the Iron Ore Seam signs donated by Erskine Ramsay in 1949. From Thomas A. Simpson (1965) "[http://pubs.usgs.gov/pp/0473c/report.pdf Geologic And H... |
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