Cook_County_GIS4-Band aerial imagery flown in 2021 for Cook County at 6 inch pixel resolution. Mosaic name is Cook2021. Service published on 8/9/2021. It is recommended that the GeoService URL is used for GIS applications, rather than downloading data.ArcGIS ImageMapLayerhttps://hub.arcgis.com/datasets/01c507a0e220450c8c5bfdc866e7e05bengCook CentralPublicCook County Aerial Imagery 2021 [Illinois--Cook County]Web servicesIllinois--Cook CountyIllinois2021