1930s_airphotos_25	1930's Digital Orthorectified Image of Dallas County, Iowa, in MrSid Format
	1950s_airphotos_25	1950's Digital Orthorectified Image of Dallas County, Iowa, in MrSid Format
	1970s_airphotos_25	1970's Digital Orthorectified Image of Dallas County Iowa
	1980s_CIR_airphotos_25	1980's Digital Orthorectified Image of Dallas County, Iowa, in MrSid Format
	1990s_airphotos_25	1990's Airphoto Mosaic for Dallas County
	2002_CIR_25	2002 Color-Infra-Red Airphoto Mosaic for Dallas County
	2004_NAIP_airphotos_25	2004 National Agriculture Imagery Program (NAIP) Aerial Photography for Dallas County, Iowa
	2005_NAIP_airphotos_25	2005 National Agriculture Imagery Program (NAIP) Aerial Photography for Dallas County, Iowa
	2006_NAIP_airphotos_25	2006 National Agriculture Imagery Program (NAIP) Aerial Photography of Dallas County, Iowa
	2007_NAIP_airphotos_25	2007 National Agriculture Imagery Program (NAIP) Aerial Photography of Dallas County, Iowa
	2008_NAIP_airphotos_25	2008 National Agriculture Imagery Program (NAIP) Aerial Photography Mosaic of Dallas County, Iowa
	2009_CIR_airphotos_25	2009 Two Foot Pixel, Color Infrared Orthophotography Mosaic of Dallas County Iowa
	2009_color_airphotos_25	2009 Two Foot Pixel, Color Orthophotography Mosaic of Dallas County Iowa
	2009_NAIP_airphotos_25	2009 National Agriculture Imagery Program (NAIP) Aerial Photography Mosaic of Dallas County, Iowa
	2010_NAIP_airphotos_25	2010 National Agriculture Imagery Program (NAIP) Aerial Photography Mosaic of Dallas County, Iowa
	2011_NAIP_airphotos_25	2011 National Agriculture Imagery Program (NAIP) Four-Band Aerial Photography of Dallas County Iowa
	Address_25	Address Points of Dallas County, Iowa
	andreas_atlas_25	Georectified Image of Dallas County from the Illustrated Historical Atlas of the State of Iowa, 1875, by A.T. Andreas
	census_1990_25	US Bureau of the Census, 1990 STF3a block level for Dallas County, Iowa
	census_2000_blocks_25	Dallas County Census 2000 Blocks
	common_land_unit_25	Common Land Unit for Dallas County, Iowa
	contours_2ft_25	Generalized Two Foot Contours of Dallas County Iowa Derived from Lidar Data
	DEM_3M_I_25	Three Meter Digital Elevation Model of Dallas County Iowa as an Imagine 16-bit Integer Raster
	DOT_roadmap_25	Iowa DOT Dallas County Highway Transportation Map, 2005
	drainage_districts_25	Drainage Districts of Dallas County, Iowa
	FEMA_DFIRM_25	Digital Flood Insurance Rate Map, Flood Hazard Areas, of Dallas County, Iowa
	GLO_maps_25	General Land Office (GLO) Maps of the State of Iowa, as Surveyed from 1836-59, Dallas County
	GLO_vegetation_25	Government Land Office Vegetation 1832-1859 for Dallas County, Iowa
	Hillshade_1M_25	Hillshade of Dallas County Iowa Derived from the LiDAR One Meter Digital Elevation Model
	HRLC_2009_25	High Resolution Landcover of Dallas County Iowa, 2009
	NWI_25_line	National Wetlands Inventory data for Dallas County, Iowa
	NWI_25_poly	National Wetlands Inventory data for Dallas County, Iowa
	NWI_remap_line_25	National Wetland Inventory Remap and Update, Line Features, of Dallas County, Iowa
	NWI_remap_poly_25	National Wetland Inventory Remap and Update, Polygon Features, of Dallas County, Iowa
	PLSS_25	Public Land Survey System for Dallas County, Iowa
	PLSS_QQQ_25	Public Land Survey System, Quarter-Quarter-Quarter Sections, of Dallas County Iowa
	rivers_25	Rivers of Dallas County
	roads_2006_25	Road Centerlines of Dallas County, Iowa, 2006, from Iowa DOT GIMS files
	soils_25	Iowa Cooperative Soil Survey (ICSS) Digital Soil Data for Dallas County
	spot_25	Digital spot data for Dallas County, Iowa
	ssurgo_line_25	Soil Survey Geographic (SSURGO) Database for Dallas County, Iowa
	ssurgo_soil_25	Soil Survey Geographic (SSURGO) Database for Dallas County, Iowa
	ssurgo_spot_25	Soil Survey Geographic (SSURGO) Database for Dallas County, Iowa
	Structures_25	Structures of Dallas County, Iowa
	surficial_geology_25	Surficial Geology of Dallas County Iowa
	USGS_quads_25	USGS 7.5' Quad Mosaic for Dallas County