Current industrial corridors in Chicago. The data can be viewed on the Chicago Data Portal with a web browser. However, to view or use the files outside of a web browser, you will need to use compression software and special GIS software, such as ESRI ArcGIS (shapefile) or Google Earth (KML or KMZ), is required.
data.cityofchicago.org (2013). Boundaries - Industrial Corridors (current) [Illinois--Chicago]. City of Chicago Data Portal. https://data.cityofchicago.org/d/e6xh-nr8w (dataset)