File:Bedrock geology of Minnesota.png
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Generalized geological map of Minnesota in central North America. Base map is from National Atlas at [1] archive copy at the Wayback Machine, showing bedrock at or near the surface (first encountered bedrock) and state and county lines, modified by submitter with additional detail, after Ojakangas, Richard R. and Matsch, Charles L. (1982) Minnesota's Geology, Minneapolis, MN: University of Minnesota Press, ISBN 0-8166-0953-5, and ‘’Bedrock Geology, Geologic Map of Minnesota’’, Minnesota Geological Survey, University of Minnesota, compiled by G.B. Morley. As to modifications, submitter releases all rights and specifically licenses use of this image under en:GNU Free Documentation License.
Licensing
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This map was obtained from an edition of the National Atlas of the United States. Like almost all works of the U.S. federal government, works from the National Atlas are in the public domain in the United States.
Online access: NationalAtlas.gov | 1970 print edition: Library of Congress, Perry-Castañeda Library
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Original upload log
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| Date/Time | Dimensions | User | Comment |
|---|---|---|---|
| 7 July 2007, 17:39:45 | 750 × 750 (38484 bytes) | Kablammo (talk · contribs) | Generalized geological map of [[:en:Minnesota|Minnesota]] in central [[:en:North America|North America]]. Base map is from National Atlas at [http://nationalatlas.gov/mld/geology.html], showing bedrock at or near the surface (first encountered bedrock) a |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 00:07, 24 August 2014 | | 750 × 750 (40 KB) | GifTagger (talk | contribs) | Bot: Converting file to superior PNG file. (Source: Bedrock_geology_of_Minnesota.gif). This GIF was problematic due to non-greyscale color table. |
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