1930s_airphotos_51	1930's Digital Orthorectified Image of Jefferson County, Iowa, in MrSid Format
	1950s_airphotos_51	1950's Digital Orthorectified Image of Jefferson County, Iowa, in MrSid Format
	1960s_airphotos_51	1960's Digital Orthorectified Image of Jefferson County, Iowa, in MrSid Format
	1970s_airphotos_51	1970's Digital Orthorectified Image of Jefferson County Iowa
	1980s_CIR_airphotos_51	1980's Digital Orthorectified Image of Jefferson County, Iowa, in MrSid Format
	1990s_airphotos_51	1990's Airphoto Mosaic for Jefferson County
	2002_CIR_51	2002 Color-Infra-Red Airphoto Mosaic for Jefferson County
	2004_NAIP_airphotos_51	2004 National Agriculture Imagery Program (NAIP) Aerial Photography for Jefferson County, Iowa
	2005_NAIP_airphotos_51	2005 National Agriculture Imagery Program (NAIP) Aerial Photography for Jefferson County, Iowa
	2006_NAIP_airphotos_51	2006 National Agriculture Imagery Program (NAIP) Aerial Photography of Jefferson County, Iowa
	2007_NAIP_airphotos_51	2007 National Agriculture Imagery Program (NAIP) Aerial Photography of Jefferson County, Iowa
	2008_NAIP_airphotos_51	2008 National Agriculture Imagery Program (NAIP) Aerial Photography Mosaic of Jefferson County, Iowa
	2009_NAIP_airphotos_51	2009 National Agriculture Imagery Program (NAIP) Aerial Photography Mosaic of Jefferson County, Iowa
	2010_CIR_airphotos_51	2010 Two Foot Pixel, Color Infrared Orthophotography Mosaic of Jefferson County Iowa
	2010_color_airphotos_51	2010 Two Foot Pixel, Color Orthophotography Mosaic of Jefferson County Iowa
	2010_NAIP_airphotos_51	2010 National Agriculture Imagery Program (NAIP) Aerial Photography Mosaic of Jefferson County, Iowa
	2011_NAIP_airphotos_51	2011 National Agriculture Imagery Program (NAIP) Four-Band Aerial Photography of Jefferson County Iowa
	andreas_atlas_51	Georectified Image of Jefferson County from the Illustrated Historical Atlas of the State of Iowa, 1875 by A.T. Andreas
	census_1990_51	US Bureau of the Census, 1990 STF3a block level for Jefferson County, Iowa
	census_2000_blocks_51	Jefferson County Census 2000 Blocks
	common_land_unit_51	Common Land Unit for JeffersonCounty, Iowa
	contours_2ft_51	Generalized Two Foot Contours of Jefferson County Iowa Derived from Lidar Data
	DEM_3M_I_51	Three Meter Digital Elevation Model of Jefferson County Iowa as an Imagine 16-bit Integer Raster
	DOT_roadmap_51	Iowa DOT Jefferson County Highway Transportation Map, 2005
	GLO_maps_51	General Land Office (GLO) Maps of the State of Iowa, as Surveyed from 1836-59, Jefferson County
	GLO_vegetation_51	Government Land Office Vegetation 1832-1859 for Jefferson County, Iowa
	Hillshade_1M_51	Hillshade of Jefferson County Iowa Derived from the LiDAR One Meter Digital Elevation Model
	HRLC_2009_51	High Resolution Landcover of Jefferson County Iowa, 2009
	NWI_51_line	National Wetlands Inventory data for Jefferson County, Iowa
	NWI_51_poly	National Wetlands Inventory data for Jefferson County, Iowa
	NWI_remap_line_51	National Wetland Inventory Remap and Update, Line Features, of Jefferson County, Iowa
	NWI_remap_poly_51	National Wetland Inventory Remap and Update, Polygon Features, of Jefferson County, Iowa
	PLSS_51	Public Land Survey System for Jefferson County, Iowa
	PLSS_QQQ_51	Public Land Survey System, Quarter-Quarter-Quarter Sections, of Jefferson County Iowa
	rivers_51	Rivers of Jefferson County
	roads_2006_51	Road Centerlines of Jefferson County, Iowa, 2006, from Iowa DOT GIMS files
	soils_51	Iowa Cooperative Soil Survey (ICSS) Digital Soil Data for Jefferson County
	spot_51	Digital spots data for Jefferson County, Iowa
	ssurgo_line_51	Soil Survey Geographic (SSURGO) database for Jefferson County Iowa with attached ISPAID database
	ssurgo_soil_51	Soil Survey Geographic (SSURGO) database for Jefferson County Iowa with attached ISPAID database
	ssurgo_spot_51	Soil Survey Geographic (SSURGO) database for Jefferson County Iowa with attached ISPAID database
	USGS_quads_51	USGS 7.5' Quad Mosaic for Jefferson County