Image:Geology of Lake Superior.jpg
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 11:13, 21 February 2008 | 600×404 (55 KB) | Stratosphere | ({{Information |Description=Geology of the Lake Superior region |Source=United States Geological Survey, Bulletin 1309 Figure 39. |Date=1975 |Author=N. King Huber |Permission= |other_versions= }} ) |
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