Illinois Department of Agriculture: GIS Information
http://www.agr.state.il.us/gis/
Agriculture related GIS datasets for Illinois. Datasets included are land cover information, cropland data layer, and Illinois Gap Analysis program. (As of March 2007.)
Illinois Department of Transportation: T2 GIS Data
http://www.dot.il.gov/gist2/select.html
Access Year 2006 IDOT statewide & county GIS data and associated metadata files.
Illinois Natural Resources Geospatial Data Clearinghouse
http://www.isgs.uiuc.edu/nsdihome/ISGSindex.html
A gateway to GIS data and imagery for Illinois. Access Illinois GIS data sets and documentation (metadata) for topographic maps, aerial photography, orthoimagery, geology, land use, natural resources, and infrastructure. Illinois data sets are available for download free of charge.
Illinois State Geological Survey Databases & Collections
http://www.isgs.uiuc.edu/isgshome/datab-coll.htm
IL State Geological Survey collects geological geospatial information. Includes: data and interactive mapping sites.
Northeastern Illinois Planning Commission's 1:24,000-Scale 2001 Land Use Inventory (48 Categories) for Northeastern Illinois, Polygon Shapefile. Version 1.2 Published: May 2006
This file is a Polygon Shapefile indicating land use in the six-county region of northeastern Illinois. Northeastern Illinois is comprised of Cook, DuPage, Kane, Lake, McHenry and Will County. Land use is aggregated to 48 categories, and was created using black and white orthorectificed aerial photography that was captured in April, 2001.
Access Constraints: NU Member Only - Ask the Map Librarian (email: c-maene) for more information about data access.
Northeastern Illinois Planning Commission's 1:24,000-Scale Shapefile of 1990 Land Use Inventory, Aggregated to 12 Categories
NIPC's 1:24,000-Scale Shapefile of 1990 Land Use Inventory, Aggregated to 12 Categories is a shapefile extracted from NIPC's 1:24000-Scale 1990 Land Use Inventory, Aggregated to 12 Categories, Version 1.0, May 1999.
Access Constraints: NU Member Only - Ask the Map Librarian (email: c-maene) for more information about data access.
City of Chicago, Geographic Information Systems, GIS Data
http://www.cityofchicago.org/gis
City of Chicago GIS layer data sets, printable maps and interactive maps are available from this site.
City of Chicago, Police Dept, CLEAR GIS
http://gis.chicagopolice.org/
Chicago Police Department's GIS web tool based on the CLEAR (Citizen Law Enforcement Analysis and Reporting) system developed by the department for use by its police officers. Downloadable GIS data files (Police beat boundaries, etc.) and interactive mapping tools are available from this site.
Chicago 1978 Neighborhoods Boundary File
http://www.uic.edu/depts/lib/documents/services/
Neighborhoods1978.zip
1978 Chicago neighborhood boundaries was created based on a map published by the City of Chicago Planning Department in 1986. The file is also available from GOS - Geospatial One Stop (http://gos2.geodata.gov).
Natural Connections: Green Infrastructure in Wisconsin, Illinois and Indiana
http://www.greenmapping.org/
Download a variety of geospatial data files for the metropolitan Chicago area from this very comprehensive data clearinghouse. This is a collaborative effort by non-profit organizations and local government to share the natural resources related spatial data for anybody who is interested in environmental analysis.
University of Chicago Library, Map Collection
http://www.lib.uchicago.edu/e/su/maps/
The University of Chicago Map Collection is one of the largest university map libraries in North America. Its 420,000 maps, 10,000 air photos, 2000 books, and hundreds of gigabytes of spatial data constitute a rich source of information for scholars and other users.
