Cook_County_GISRecorded Section Corners on the boundary of Cook County. Corners on the Will-Cook border were surveyed and recorded between 2012 and 2013. Section Corners around the rest of Cook's boundary were surveyed and recorded in 2024.ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/10c6f4adc3c8463d86985d98ac1561ee_0engCook CentralPublicSection Corner [Illinois--Cook County]Web servicesIllinois--Cook CountyIllinoisLast Modified: 2025-06-03