GIS, Mapping, and Data Resources
For Illinois
Digital Orthophoto Quadrangles (DOQs)
Gamma-Ray Logs Database
Historical Aerial Photographs 1936-1941
Illinois Watershed Management Clearinghouse
Land Cover - Maps, Data, and Statistics
Midwest Institute of Geosciences and Engineering
Natural Resources Geospatial Data Clearinghouse
Oil & Gas (ILOIL) Internet Map Service
Water and Related Wells in Illinois
Water Well (ILWATER) Internet Map Service
Illinois and Beyond
Demonstration of GIS Atlas for Indiana Hillshading Feature
- Indiana Geological Survey
EarthExplorer – USGS Digital Data
Earth Resources Observation and Science (EROS) Data Center
- U.S. Geological Survey
GIS.com
- Guide to Geographic Information Systems by Earth Systems Research
Institute (ESRI)
IndianaMap
- public source for map data in Indiana
Kentucky Geography Network
Library of Congress Online Map Collections
National Atlas of the United States
National Spatial Data Infrastructure (NSDI)
Perry-Castañeda Library Map Collection
- University of Texas at Austin
State Cartographer Office
- University of Wisconsin, Madison
GIS Organizations, Newsletters, Miscellaneous
Environmental Systems Research Institute (ESRI) Geography Network
Federal Geographic Data Committee
Geographic Resources Analysis Support System (GRASS)
- free GIS software used for geospatial data management
GISCafé
- GIS information and news
GIS.com
- Guide to Geographic Information Systems by Earth Systems Research
Institute (ESRI)
GIS Development
- Geospatial Communication Network; links to many GIS sites and over
1,000 GIS and geospatial research papers
Illinois GIS Association (ILGISA)
MapCruzin
- free GIS shapefiles, software, and resources, and geography maps
Open Source GIS
- open source and free GIS software links
U.S. Naval Observatory (USNO) GPS Time Transfer
Updated 04/07/2011 SLD