File:Diagram showing historical levels of Lake Superior.jpg
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Diagram_showing_historical_levels_of_Lake_Superior.jpg (450 × 334 pixels, file size: 20 KB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 11:39, 12 April 2005 | 450 × 334 (20 KB) | commons>Worldtraveller | Diagram showing effect of glaciation and post-glaciation unloading on the height of Lake Superior above sea level. From [http://www.cr.nps.gov/history/online_books/754a/sec6.htm]. {{PD-USGov-Interior-USGS}} |
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