Lake Michigan basin, USA: Principal Aquifers

Mar 31, 2011 (Last modified May 14, 2011)
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Description:
This data set contains the shallowest principal aquifers of the Lake Michigan basin, portrayed as polygons.  The data set was developed as part of the effort to produce the maps published at 1:2,500,000 in the printed series "Ground Water Atlas of the United States".  The published maps contain base and cultural features not included in these data.  This is a replacement for the July 1998 data set called Principal Aquifers of the 48 Conterminous United States.
   
Data Provided By:
Great Lakes Geographic Information System
Content date:
not specified
Citation:
http://gis.glin.net/ogc/services.php#lmb_aquifer_nais
Spatial Resolution:
1:2,500,000
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not specified
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Creative Commons LicenseThis work is licensed under a Creative Commons Attribution 3.0 License.
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FGDC Standard Metadata XML
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Dataset Type:
Layer Package
Tags:
groundwater, water source, great lakes, hydrology, water table, aquifer
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