This feature layer contains US National Grid tiles at the 100 meter interval that intersect the greater Linn County, Iowa area.For more information about the US National Grid,visit their information center site.Update FrequencyAs neededAdditional 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, apps, and data of interest from various County departments.Contact InformationQuestions? Contact the GIS Division by phone at 319.892.5250 or byemail.