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Maps/Mapping

Chester Fritz Library

Web Sources

ESRI free data
Fedstats
Data.gov
U.S. Gov. open data site
Maps and GIS Resources: United States, by State (U. of Oregon)
Sptatial Data on the Web by State (from MIT)
NHGIS National Historical Geographic Information System
The National Historical Geographic Information System (NHGIS) provides, free of charge, aggregate census data and GIS-compatible boundary files for the United States between 1790 and 2010.

Regional State GIS Offices

See Web Sources box for all state and other GIS data.

Wyoming
South Dakota
Montana
North Dakota
Minnesota Geospatial Information Office
A starting point to find Minnesota geospatial data needed for Geographic Information Systems (GIS).