The dataset consists of tiled orthogonal imagery produced from NADIR images captured by Pictometry International.  The imagery was collected between April 20th, 2019 and May 5th, 2019.  Automatic aerial triangulation (AAT) was performed.  The triangulated frames were rectified to a LiDAR derived DEM.  Mosaicking was performed using an automatic seaming algorithm and manually edited to eliminate seams through elevated features where possible. This dataset is projected using the Transverse Mercator map projection.  The spatial reference for the imagery is NAD83/GRS80 (horizontal datum), and North American Vertical Datum of 1988. 

AREA (Township / T.R.) SIZE Download
Wheatland (T.37N R.9E) 555 MB link
DuPage (T.37N R.10E) 590 MB link
Plainfield (T.36N R.9E) 578 MB link
Lockport (T.36N R.10E) 555 MB link
Homer (T.36N R.11E) 635 MB link
Troy (T.35N R.9E) 646 MB link
Joliet (T.35N R.10E) 539 MB link
New Lenox (T.35N R.11E) 686 MB link
Frankfort (T.35N R.12E) 679 MB link
Channahon (T.34N R.9E) 636 MB link
Jackson (T.34N R.10E) 750 MB link
Manhattan (T.34N R.11E) 797 MB link
Green Garden (T.34N R.12E) 750 MB link
Monee (T.34N R.13E) 763 MB link
Crete (T.34N R.14-15E) 973 MB link
Wilmington (T.33N R.9E) 737 MB link
Florence (T.33N R.10E) 948 MB link
Wilton (T.33N R.11E) 923 MB link
Peotone (T.33N R.12E) 835 MB link
Will (T.33N R.13E) 873 MB link
Washington (T.33N R.14-15E) 1.0 GB link 
Reed / Custer / Wesley (T.32N R.9E)      709 MB      link
Custer / Wesley (T.32N R.10E) 921 MB link