Image:Diagram showing historical levels of Lake Superior.jpg

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Diagram showing effect of glaciation and post-glaciation unloading on the height of Lake Superior above sea level. From .


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  • (del) (cur) 11:39, 12 April 2005 . . Worldtraveller ( Talk | contribs) . . 450×334 (20,178 bytes) (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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