File:Basaltic columns Lake Superior.png
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DescriptionBasaltic columns Lake Superior.png |
English: Columns of basalt on the northwest shore of Lake Superior |
Date | |
Source | Owen, David Dale (1852) Report of a Geological Survey of Wisconsin, Iowa, and Minnesota, Philadelphia: Lippingcott, Grambo & Co., p. 384 Retrieved on 14 June 2012. |
Author | Sketch by Richard Owen, engraved by J. W. Orr, on wood by S. Wade |
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Public domainPublic domainfalsefalse |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 01:29, 14 June 2012 | 1,081 × 669 (583 KB) | Brian the Editor (talk | contribs) |
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Vertical resolution | 37.79 dpc |