Linn County, Iowa 2012 spring image service.Imagery Layer DetailsUpdate Frequency: NeverPixel Resolution (urban): 3-inchPixel Resolution (rural): 3-inchMosaic Dataset Coordinate System: WGS 1984 Web Mercator Auxiliary SphereSource Tiles Coordinate System: NAD 1983 State Plane Iowa NorthMax Visibility Scale: NoneMin Visibility Scale:NoneAdditional ResourcesVisitLinn County, Iowaon the web.VisitLinn County, Iowa GISon the web.Visit theLinn County, Iowa GIS portal. This site is updated as needed to reflect maps and apps of interest from various departments.Contact InformationQuestions about this map? Contact the GIS Division by phone at 319.892.5250 or byemail.