City of Chicago Innovation and Technology Department-GIS ProgramThis line data layer represents major streets for Chicago, Illinois in 2003. The dataset was originally published by the City of Chicago Innovation and Technology Department-GIS Program in 2003.Shapefileark:/77981/gmgsp26q30bengPublicMajor Streets Chicago, Illinois {2003}DatasetsIllinois--ChicagoIllinois2003American Geographical Society Library – UWM Libraries