| Description | URL |
| USFWS | |
| FWS home page. | http://www.fws.gov/ |
| FWS-related data sources. | http://www.fws.gov/data/datafws.html |
| GIS & Spatial Data web page – see “GIS Spatial Data Topics” section for links to data sources. | http://www.fws.gov/data/gishome.html |
| National Wetlands Inventory home page. | http://ftp.nwi.fws.gov/ |
| Standard Operating Procedures for FWS offices to create Digital Boundary Information pages. | http://www.fws.gov/data/gissop.html |
| FEDERAL AND REGIONAL EXTENTS | |
| General | |
| FGDC National Geospatial Data Clearinghouse home page. | http://fgdclearhs.er.usgs.gov/ |
| National Atlas of the United States home page. | http://www.nationalatlas.gov/ |
| NOAA National Geophysical Data Center (NGDC)’s Global Ecosystems Database, including the Kuchler Map. | http://www.ngdc.noaa.gov/seg/eco/cdroms/gedii_b/html/database.htm |
| USDA Geospatial Data Gateway site, an interactive mapping website for selecting environmental data layers. | http://lighthouse.nrcs.usda.gov/gateway/gatewayhome.html |
| US Department of Commerce National Geodetic Survey (NGS) home page. | http://www.ngs.noaa.gov/ |
| USGS Earth Resources Observation Sytems (EROS) Data Center home page. | http://edcwww2.cr.usgs.gov/ |
| USGS EarthExplorer interactive mapping website, provides ability to query and order satellite images, aerial photographs and cartographic products. | http://earthexplorer.usgs.gov/ |
| USGS Geographic Data Download page. | http://edcwww.cr.usgs.gov/doc/edchome/ndcdb/ndcdb.html |
| USGS Geospatial Data Clearinghouse. | http://mapping.usgs.gov/nsdi/ |
| USGS Land Cover Products download page. | http://edc.usgs.gov/products/landcover.html |
| USGS Mid-Continent Mapping Center home page. | http://mcmcweb.er.usgs.gov/ |
| USGS National Mapping Information page. | http://mapping.usgs.gov/ |
| USGS Scientific Assessment and Strategy Team (SAST) home page, covers Upper Mississippi and Lower Missouri River basins. See “Data Sets Available On-Line” section. | http://edcwww2.cr.usgs.gov/sast-home.html |
| DEMs | |
| MICRODEM software and related data home page. Data sets mostly related to marine geology, but one link to index for TIGER and USGS 1:24k data. Software developed by US Naval Academy faculty | http://www.usna.edu/Users/oceano/pguth/website/microdemdown.htm |
| Spatial Data Transfer Standard (SDTS) page hosted by USGS. See red-boxed link to “STDS data are available on-line”: | http://mcmcweb.er.usgs.gov/sdts/index.html |
| Environmental Modeling Research Laboratory at Brigham Young University, links to EPA, NED and USGS DEMs | http://emrl.byu.edu/gishydrodata/dem.htm |
| Land Cover | |
| USGS National Land Cover Characterization (NLCC) | http://landcover.usgs.gov/natllandcover.html |
| USGS NLCC Documentation | http://fisher.lib.virginia.edu/nlcd/helps/nlcdva_info.html |
| USGS NLCC Data Download Site | http://edcwww.cr.usgs.gov/pub/data/landcover/states/ |
| USGS list of other websites related to land cover. Has listings for international, federal, state, university and commercial websites. | http://landcover.usgs.gov/otherorganizations.html |
| Soils | |
| USDA Natural Resources Conservation Service (NRCS) home page. | http://soils.usda.gov/ |
| Direct link for downloading statewide-level general (STATSGO) soils data. | http://www.ftw.nrcs.usda.gov/stat_data.html |
| Direct link for downloading detailed (SSURGO) soils data. | http://www.ftw.nrcs.usda.gov/ssur_data.html |
| Water/Hydrology | |
| Environmental Modeling Research Laboratory at Brigham Young University, links to engineering and hydrologic modeling related data sets. | http://emrl.byu.edu/gishydrodata/gisdata.htm |
| EPA Better Assessment Science Integrating Point and Nonpoint Sources (BASINS) home page. | http://www.epa.gov/waterscience/basins/ |
| USGS hydrologic units maps of the conterminous U.S. (1:250,000 scale): | http://water.usgs.gov/GIS/metadata/usgswrd/huc250k.html |
| USGS Water Resources “List of Spatial Data Sets for Water” page. | http://water.usgs.gov/lookup/getgislist |
| STATEWIDE EXTENTS | |
| Illinois | |
| Illinois State Geological Survey’s Illinois Natural Resources Geospatial Data Clearinghouse. | http://www.isgs.uiuc.edu/nsdihome |
| Iowa | |
| Iowa Department of Natural Resources Geological Survey Bureau home page. | http://www.igsb.uiowa.edu/ |
| Iowa State University Geographic Information Systems Support and Research Facility home page, see “Data” link. | http://www.gis.iastate.edu/ |
| USDA NRCS Iowa office home page. | http://www.ia.nrcs.usda.gov/ |
| Michigan | |
| State of Michigan Information Center’s Michigan Geographic Information Clearinghouse. | http://www.state.mi.us/dmb/mic/gis/ |
| Minnesota | |
| Department of Natural Resources (DNR) home page. | http://www.dnr.state.mn.us/ |
| DNR Air Photos Online web page. | http://www.dnr.state.mn.us/airphotos/index.html |
| DNR “Data Deli” data clearinghouse web page. | http://deli.dnr.state.mn.us |
| Land Management Information Center (LMIC) home page. | http://www.lmic.state.mn.us/index.html |
| LMIC “Digital Soil Mapping in Minnesota” page. | http://www.lmic.state.mn.us/chouse/soil.html |
| Metropolitan Council (Twin Cities) “GIS at the Metropolitan Council” home page. | http://gis.metc.state.mn.us/data.asp |
| Metropolitan Council MetroGIS home page. | http://www.metrogis.org/ |
| MN DOT Basemap, planning level data set developed at a scale of 1:24000. Transportation, boundaries, streams, lakes. | http://rocky.dot.state.mn.us/basemap/ |
| MN Legislative GIS office home page. | http://www.commissions.leg.state.mn.us/gis/index.html |
| MN GIS/LIS Consortium “Contacts for Minnesota GIS Data or Tools” page. | http://www.mngislis.org/contacts.htm |
| MN Planning “County Soil Surveys: Guidelines for Digitizing” page. | http://www.mnplan.state.mn.us/press/soilsrpt.html |
| Natural Resources Conservation Service (NRCS) office for Minnesota, home page. | http://www.mn.nrcs.usda.gov/ |
| NRCS Minnesota Soil Survey Information page. | http://www.mn.nrcs.usda.gov/soils/soils.html |
| USGS EROS Data Center’s page re: large scale digital line graphs for Minnesota. | http://edcwww.cr.usgs.gov/doc/edchome/ndcdb/dlg_large/states/MN.html |
| USGS Status Graphics for Minnesota Mapping Products page. | http://mcmcweb.er.usgs.gov/status/mcmc/mn/index.html |
| Missouri | |
| Missouri Spatial Data Information Service, housed at the University of Missouri – Columbia Department of Geography. Good site for downloading Missouri-specific data layers. | http://msdis.missouri.edu |
| Missouri Resource Assessment Partnership home page, click on “GIS Resources” link to reach list of GIS data-related links. | http://www.cerc.usgs.gov/morap |
| Nebraska | |
| Nebraska Geospatial Data Clearinghouse home page. | http://geodata.state.ne.us/ |
| Nebraska Natural Resources Commission Data Bank’s “Spatial/GIS Databases” web page. | http://nrcnt2.nrc.state.ne.us/cgi-win/spatial.exe |
| Wisconsin | |
| State of Wisconsin land information clearinghouse. | http://wisclinc.state.wi.us |
| INTERNATIONAL | |
| Canadian federal Natural Resources Canada (NRCan) department, Cartographic Services section home page. | http://www.nrcan-rncan.gc.ca/ess/carto/index_e.html |
| Canadian federal GeoConnections geospatial data clearinghouse. | http://www.geoconnections.org/english/index.html |
| GinfoServer website home page, set up by Benedikt Haack at the University of Bonn, Germany. (This site may be out of date.) | http://geo.uni-bonn.de/members/haack/gisinfo.html |
| COMMERCIAL | |
| Environmental Systems and Research Institute (ESRI) home page. | http://www.esri.com/ |
| ESRI’s “ArcData” web page with variety of links to downloadable data. | http://www.esri.com/data/index.html |
| ESRI Geography Network home page, variety of links to online maps, downloadable data, and web services. | http://www.geographynetwork.com |
| ESRI Online Support Center web page. | http://support.esri.com/ |
| GIS Data Depot. | http://data.geocomm.com/catalog/ |