National Geologic Map Database
Product Description Page
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Title: The pre-Cambrian of the Lake Superior region, the Baraboo district, and other isolated areas in the upper Mississippi Valley
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Author(s): Leith, Andrew
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Publishing Organization: Kansas Geological Society
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Series and Number: Guidebook for the Annual Field Conference no. 9 [p. 320-332]
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Larger Work: Trowbridge, A.C., ed., Upper Mississippi Valley: Iowa City, Iowa to Duluth, Minnesota
- Publication Date: 1935
- Map Scale: 1:181,028
- Cross Section: Yes
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.