seriesNo,seriesEntityName,seriesTitle,seriesDateRange,seriesArrangement,seriesDescription,seriesTotRetentDesc,seriesPrimaryClassCode,seriesExtentDesc 28201,Department of Natural Resources. Geological Survey,Open-File Reports,ca. 1983-,Numerical by report number,"Documents created by the agency\, including pamphlets\, reports\, leaflets\, file manuals\, annual reports\, other published or processed documents\, and the last manuscript report\, if not published\, relating to management projects.",Permanent. Retain until administrative need ends,Public,1.20 cubic feet 1 microfilm reel