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1. Digital Orthophoto Quadrangle (DOQ) Data: Illinois, 1998 - 2001

1998. U.S. Geological Survey. This is a collection of tile-by-tile NAPP-III DOQs (1998-2001) images in MrSID format for the state of Illinois, in UTM Zones 15 and 16, NAD83. Ort...

2. Historical Aerial Photography: Illinois, 1937-1947

1936. Illinois State Geological Survey. The primary data set consists of historical black and white aerial photographs from Illinois acquired during 1936 to 1941. Alternative years of pho...

3. Mosaic of Des Plaines Watershed, IL/WI - TerraSource Orthorectified Imagery, 2000

2000. Illinois State Geological Survey ImageAmerica. Note: The original metadata file was written by ImageAmerica. There are a few additions by ISGS required for archival and access in the Survey's en...

4. Mosaic of Digital Orthophoto Quadrangles in UTM Zone 16, NAD83 Photography: Illinois, 2005

2005. U.S. Geological Survey Surdex Corporation and Science Applications International Corporation (SAIC) Illinois State Geological Survey. This data set is an SDE raster mosaic of DOQs from year 2005 that occur within the UTM Zone 16 portion of Illinois. The data are stored in the 'as ...

5. Mosaic of Illinois 7.5-minute Digital Raster Graphic (DRG) Images, 2003

2003. Illinois State Geological Survey. This is a statewide ArcSDE Raster Mosaic of USGS DRG images of 7.5-minute topographic quadrangles occurring in Illinois. These are unmodified DRG i...

6. NAIP Digital Orthophoto Quadrangle Data: Illinois, 2014

2005. USDA-FSA-APFO Aerial Photography Field Office. This data set contains imagery from the National Agricultural Imagery Program (NAIP). NAIP acquires digital ortho imagery during the agricultural g...

7. Statewide 30-Meter Shaded Relief Image: Illinois, 2006

2003. Lisa Smith Chris Goldsmith Donald Luman. This is a shaded relief image of Illinois in ArcSDE raster format. The data are stored in UTM coordinates, using a Transverse Mercator projection w...