| 1930s_airphotos_61 | 1930's Digital Orthorectified Image of Madison County, Iowa, in MrSid Format | |
| 1950s_airphotos_61 | 1950's Digital Orthorectified Image of Madison County, Iowa, in MrSid Format | |
| 1960s_airphotos_61 | 1960's Digital Orthorectified Image of Madison County, Iowa, in MrSid Format | |
| 1970s_airphotos_61 | 1970's Digital Orthorectified Image of Madison County Iowa | |
| 1980s_CIR_airphotos_61 | 1980's Digital Orthorectified Image of Madison County, Iowa, in MrSid Format | |
| 1990s_airphotos_61 | 1990's Airphoto Mosaic for Madison County | |
| 2002_CIR_61 | 2002 Color-Infra-Red Airphoto Mosaic for Madison County | |
Not Avail. |
2004_NAIP_airphotos_61 | 2004 National Agriculture Imagery Program (NAIP) Aerial Photography for Madison County, Iowa |
| 2005_NAIP_airphotos_61 | 2005 National Agriculture Imagery Program (NAIP) Aerial Photography for Madison County, Iowa | |
| 2006_NAIP_airphotos_61 | 2006 National Agriculture Imagery Program (NAIP) Aerial Photography of Madison County, Iowa | |
| 2007_NAIP_airphotos_61 | 2007 National Agriculture Imagery Program (NAIP) Aerial Photography of Madison County, Iowa | |
| 2008_NAIP_airphotos_61 | 2008 National Agriculture Imagery Program (NAIP) Aerial Photography Mosaic of Madison County, Iowa | |
| 2009_CIR_airphotos_61 | 2009 Two Foot Pixel, Color Infrared Orthophotography Mosaic of Madison County Iowa | |
| 2009_color_airphotos_61 | 2009 Two Foot Pixel, Color Orthophotography Mosaic of Madison County Iowa | |
| 2009_NAIP_airphotos_61 | 2009 National Agriculture Imagery Program (NAIP) Aerial Photography Mosaic of Madison County, Iowa | |
| 2010_NAIP_airphotos_61 | 2010 National Agriculture Imagery Program (NAIP) Aerial Photography Mosaic of Madison County, Iowa | |
| 2011_NAIP_airphotos_61 | 2011 National Agriculture Imagery Program (NAIP) Four-Band Aerial Photography of Madison County Iowa | |
| Address_61 | Address Points of Madison County, Iowa | |
| andreas_atlas_61 | Georectified Image of Madison County from the Illustrated Historical Atlas of the State of Iowa, 1875, by A.T. Andreas | |
| census_1990_61 | US Bureau of the Census, 1990 STF3a block level for Madison County, Iowa | |
| census_2000_blocks_61 | Madison County Census 2000 Blocks | |
| common_land_unit_61 | Common Land Unit for Madison County, Iowa | |
| contours_2ft_61 | Generalized Two Foot Contours of Madison County Iowa Derived from Lidar Data | |
| DEM_3M_I_61 | Three Meter Digital Elevation Model of Madison County Iowa as an Imagine 16-bit Integer Raster | |
| DOT_roadmap_61 | Iowa DOT Madison County Highway Transportation Map, 2005 | |
| GLO_maps_61 | General Land Office (GLO) Maps of the State of Iowa, as Surveyed from 1836-59, Madison County | |
| GLO_vegetation_61 | Government Land Office Vegetation 1832-1859 for Madison County, Iowa | |
| Hillshade_1M_61 | Hillshade of Madison County Iowa Derived from the LiDAR One Meter Digital Elevation Model | |
| HRLC_2009_61 | High Resolution Landcover of Madison County Iowa, 2009 | |
| NWI_61_line | National Wetlands Inventory data for Madison County, Iowa | |
| NWI_61_poly | National Wetlands Inventory data for Madison County, Iowa | |
| NWI_remap_line_61 | National Wetland Inventory Remap and Update, Line Features, of Madison County, Iowa | |
| NWI_remap_poly_61 | National Wetland Inventory Remap and Update, Polygon Features, of Madison County, Iowa | |
| PLSS_61 | Public Land Survey System for Madison County, Iowa | |
| PLSS_QQQ_61 | Public Land Survey System, Quarter-Quarter-Quarter Sections, of Madison County Iowa | |
| rivers_61 | Rivers of Madison County | |
| roads_2006_61 | Road Centerlines of Madison County, Iowa, 2006, from Iowa DOT GIMS files | |
| soils_61 | Iowa Cooperative Soil Survey (ICSS) Digital Soil Data for Madison County | |
| spot_61 | Digital spot data for Madison County, Iowa | |
| ssurgo_line_61 | Soil Survey Geographic (SSURGO) Database, Line Features, of Madison County, Iowa | |
| ssurgo_soil_61 | Soil Survey Geographic (SSURGO) Database, with Attached Iowa Soil Properties And Interpretations Database (ISPAID) , of Madison County, Iowa | |
| ssurgo_spot_61 | Soil Survey Geographic (SSURGO) Database, Spot Features, of Madison County, Iowa | |
| Structures_61 | Structures of Madison County, Iowa | |
| USGS_quads_61 | USGS 7.5' Quad Mosaic for Madison County |