Black and white aerial mosaic flown during spring leaf-off in 1997. The aerial covers the Peoria County boundary extent and resolution is 2 feet. The aerial is in MrSID format and will be provided in a compressed zip file format. Please contact us if you would like a copy of the data.Contact InformationPeoria County GISEmail: gis@peoriacounty.orgPhone: 309-495-4840The black and white aerial mosaic is bound to the Peoria County GIS Open Data License Agreement which can be found here: https://data-peoriacountygis.opendata.arcgis.com/pages/peoria-county-gis-open-data-license-agreement.