Linn County Iowa GISThis historic feature layer contains Linn County, Iowa 5 foot contours created in 2000. These contour lines were generated from a DEM created in 2000 during a Linn County and Cedar Rapids Orthoimagery project with Surdex. The Elevation field within this feature layer represents the elevation above sea level in feet. Update Frequency None, this data is an archive. Additional Resources Visit Linn County, Iowa on the web. Visit Linn County, Iowa GIS on the web. Visit the Linn County, Iowa GIS portal . This site is updated as needed to reflect maps, apps, and data of interest from various County departments. Contact Information Questions? Contact the GIS Division by phone at 319.892.5250 or by email .ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/38dfcabb504146a7924021daa1060a80_0engLinn County, Iowa Open Data PortalPublicHistoric 2000 Contour (5ft) [Iowa--Linn County]Web servicesIowa--Linn CountyIowa2000