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Geographic Information Systems (GIS) & Geospatial Data

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The Map Library's GIS Data User Agreement.

Wisconsin Data Collections in the Robinson Map Library Archive:

  • Adams County
    2012 tax parcels and assessment data, addresses, aldermanic districts, hydro, points of interest, roads, supervisory districts, school districts,
    (via NCWRPC):
    1980, 1990, 2000, 2005, 2010 land use
  • Ashland County:
    2013 tax parcels and assessment data, hydro, roads, ROW, rails, road signs, PLSS, town boundaries
    2012 tax parcels and assessment data
    2010 tax parcels and assessment data
    2006 tax parcels and assessment data
  • Barron County:
    2012 tax parcels and assessment data, roads, municipalities
    2007 tax parcels, right-of-way, 2ft contours, cultural and recreational features, land cover, roads, rails, vegetation, wetlands, hydro, watersheds, zoning, zip codes
    2005 6" b/w orthophotos
  • Bay Lake Regional Planning Commission: Land Use for: Brown , Door, Florence, Kewaunee, Marinette, Oconto, & Sheboygan Counties (various years)
  • Bayfield County:
    2012 tax parcels and assessment data, existing and future land use, streets, zoning districts, FEMA floodplains, hydro, snowmobile/ATV/trails/routes

    2010 tax parcels and assessment data
    2007 tax parcels and assessment data, 10ft contours/10mDEM
    2006 tax parcels and assessment data
  • Brown County:
    2012 tax parcels/assessment, addresses, administrative boundaries, county facilities, districts/wards, drainage, flood hazards, land conservation, land use, parks, schools, transportation

    2009 tax parcels/assessment, addresses, administrative, bathymetry, census, cultural resources, flood hazards, geology, land conservation, existing land use, natural environment, parks&recreation, reference, storm water management, 2ft contours, transportation, utilities, zoning; historic

    2005 tax parcels and assessment data.

  • Buffalo County:
    2013 tax parcels adnd assessment data, municipalities, roads, address points, zoning

  • Calumet County:
    NEW (2013): Access Calumet data ONLINE
    2012 Admin, Basemap, Environmental updates
    2010 Admin: tax parcels/assessment, police, fire, ems, addresing, municipal boundaries, polling/voting, daycare/elderly facilities, shoreland zoning, school districts, senate/supervisory districts, TIF districts, PLSS, utility districts, zip codes, zoning, 2004 land use
    2010 BaseMap: traffic counts, boat landings, bridges, building footprints, cell towers, dams, fire hydrants, gas lines, medical, mine/quarry areas, power lines/stations, railroads, rec facilities, roads, school locations, trails,

    2010 Environmental: hydro, 4ft contours, bedrock, parks, soils, watersheds, wells, wetlands

    2007 existing land use (via ECWRPC)
  • Chequamegon-Nicolet National Forest areas: CNNF districts, vegetation stands 2009, management areas, NEPA boundaries, ownership areas, recreation sites, timber harvest data for 1999-2009, roads, trails (2009).

  • Chippewa County:
    2012 tax parcels and assessment data, county forests, municipalities, school districts, hydro,
    2010 tax p
    arcels and assessment data.

  • Clark County:
    2012 tax parcels and assessment data, address points, roads, municipalities, 2002 land use, forest and recreation zones, 10ft contours, PLSS, hydro, political districts, public lands, roalroads, school districts, soils, unincorporated places, voting wards [2011].

  • Columbia County
    2012 tax parcels and assessment data, 4ft contours, floodzones, EMS districts, hydro, municipal boundaries, soils, PLSS, roads, school districts, railroads, 2011 supervisor voting districts, 2011 voting wards, agricultural districts, zoning

    2009 floodplains, LESA, soils (hightly erodible lands, hydric, prime farmland), public lands,4ft contours, recreation trails, biking roads, hydrography, MDCs, municipal buildings, recycling centers, PLSS, public lands, boat launches, recreation/trails/rustic roads/snowmobile/IceAge, school districts, school buildings, tax parcels/assessment, ferry crossing, railroads, roads, 2001 supervisory districts/voting wards, zoning/agricultural districts/300ft shoreland buffer.

    2007 countywide MrSID ortho/1ft color.

    2006 4ft contours, roads/transportation, emergency/fire/ems, municipal boundaries, hydrology, PLSS, 2005 land use, tax parcels, school districts, recreation trails, soils, voting wards, miscellaneous points of interest, zoning.

  • Crawford County: 2012 tax parcels and assessment data (county coverage is incomplete)
  • Dane County:
    2013 tax parcels and assessment data, hydro, municipalities, environmental corridors, street centerlines, PLSS sections, slopes12%, soils, supervisory districts, zoning

    2012 tax parcels and assessment data, hydro, municipalities, environmental corridors, street centerlines, PLSS sections, slopes12%, soils, supervisory districts, zoning

    2011 boat launch locations and WiDNR boat landings, cultural sites, intersection controls (via CARPC)
    2011 tax parcels and assessment data, street centerlines, environmental corridors, hydro, PLSS, slopes12%, soils, supervisory districts, 2010 building footprints

    2010 tax parcels and assessment data, street centerlines, environmenal corridors, hydrography

    2010, 2009, 2008, 2007 (years may vary by layer:) soils, 10-ft contours, municipal boundaries, street centerlines, hydrography, PLSS, supervisory districts, building footprints, environmental corridors, MCDs, cell towers, conservation easements (associated metadata should be consulted for actual currency of data).

    2006-2000 historic tax parcels and assessment data

    2010/2005/2000/1990 Land Use
  • Dodge County:
    2012 tax parcels/assessment data, parks, street centerlines, structures, contours, land use 2011, zoning, railroads, town boundaries, municipal boundaries

    2008 tax parcels, road centerlines, PLSS, municipal boundaries, hydrography, Horicon Marsh, public lands, railroads, 2006 6"b/w MrSID orthophoto
  • Door County:
    2012 tax parcels and assessment data, land use, addresses, municipalities, roads, zoning
    2010 tax parcels and assessment data, land use
    2007 DEM, EMS address, land use, roads, streams, zoning, cultural & recreational data, 2ft contours, DRGs, DTM, soils, watersheds, 1992 1m b/w orthophotos, 2002 1ft color orthophotos.
    2006 tax parcels and assessment data
  • Douglas County: AVAILABLE ONLINE (Click Here)
    2011 addresses, tax parcels and assessment data, aldermanic dist., city zoing, wards, polling places, municipalities, school districts, supervisory districts, county zoning, hydrant locations, land use, floodplains, impervious areas, mitigation vegetation, wetlands, hydro, PLSS, recreational features/parks, buildings, cemeteries, school locations, roads/ROW, alleys, stop signs, traffic signals, forest roads, trails, driveways, railroads, highway signs, intersections, utilities (garbage/recycling routes, sewers, storage basins)

    2010 tax parcels and assessment data, transportation, 1ft contours (LIDAR), 2009 orthos, administrative boundaries, existing land use, floodplains, zoning, impervious surfaces, hydrography, archery/hunting sites, plss, buildings, cemetaries, parks, trails, schools, utilities; historic 2005 tax parcel and assessment data.

    2009 land use (via Northwest RPC)

  • Dunn County:
    2013 tax parcels and assessment data, hydro, points of interest, transportation

  • Eau Claire County:
    2011 (and 2010, 2009) address points, street centerlines, structures, tax parcels and assessment data, annexations, civil divisions, school districts, hydro, supervisory districts, PLSS

  • Fond du Lac County:
    2012 tax parcels and assessment data, municipalities, hydro, census tracts, addresses, 2ft contours/DEM (LIDAR), roads, ROW, supervisory districts, voting wards, zoning

    2010 airport zoning, cemetaries, admininstrative boundaries, 2ft contours (LIDAR), government, hospitals, municipal, hydrography, parks, places of worship, plss, roads, ROW, schools, trails, unincorporated villages, wind turbines, zoning, tax parcels and assessment data,

    2009 floodplains

    2007 existing land use (via ECWRPC)

  • Florence County:
    2012 civil towns, PLSS, tax parecls and assessment data, streets
    (via Northwest RPC): 1999 and 2009 land use.

  • Forest County:
    2013 tax parcels and assessment data, boundaries, transportation, recreation/trails/natural areas, environmental, utilities, zoning
    2009 tax parcels and assessment data, boundaries (PLSS, etc.), transportation, enviornmental, utilities, zoning

  • Grant County:
    2012 tax parcels and assessment data, hydro, zoning, PLSS, MCDs, roads, 2ft contours (LIDAR)
  • Green County:
    2012 tax parcels and assessment data, address points, MCDs, lakes, CSMs, PLSS, ROW, streams, streets, subdivisions.

    2007 tax parcels and assessment data, school districts, supervisory districts, voting wards, 20ft contours, lakes, soils, watersheds, subdivisions, PLSS sections, PLSS towns, MCDs, address grid, cell towers, EMS/Fire/Law zones, streets, private roads, zip codes, 2005 countywide MrSID 1.5' b/w orthophoto.
  • Green Lake County:
    2012 tax parcels/assessment data, address points, municipal boundaries, PLSS corners, roads
    2011 LIDAR data / 2ft contours
    2009 tax parcels, transportation, MCDs, 4ft contours, 2005 6" b/w orthos
  • Iowa County:
    2012 tax parcels/assessment data, zoning, street centerlines

    2008 road centerlines and tax parcels, 2005 b/w 18' orthophotos.
  • Iron County:
    2012 tax parcels and assessment data, address points
    2009 county boundary, forests, tax parcels/assessment data, MCDs, school districts, PLSS, hydrography, transportation, general soils, tribal land; historic 2005 tax parcels and assessment data.

    2002 land use (via Northwest RPC)
  • Jackson County:
    2012 tax parcels/assessment data, address points, existing land use, future land use, municipal boundaries, roads

    2008 tax parcels, subdivisions, control corners, streets, address points, forestry, highways, streams, open water, railroads, ROW, PLSS, soils
  • Jefferson County:
    2012 tax parcels/assessment data, addresses, roads, municipal boundaries, town zoning, 2008 land use

    2011 tax parcels/assessment data, roads, contours for select areas.

    2009 tax parcels/assessment data, roads, bike paths, contours for select areas.

    2007 conservation and public lands, roads, tax parcels/assesment data, environmental corridors, zoning, soils, trails, municipal boundaries, subdivisions, 2ft contours for Lake Ripley area, 2004-05 orthophotos.

    2006 tax parcels/assessment data, land use, subdivisions.

  • Kenosha County:
    2012 address points, civil divisions, comprehensive plan, hydro, streets, zoning, elevation/contours (.dgn)
    (via SEWRPC):
    1963, 1970, 1980, 1990, 2000, 2010 land use

  • Kewaunee County:
    2012 tax parcels/assessment data, address points, roads/highways, streams, wetlands, fire dept. locations, fire dispatch locations, rescue dispatch locations, 100yr floodplains, municipal boundaries, school districts, PLSS, telephone exchanges, unincorporated places, zip codes

    2009 tax parcels and assessment data, street centerlines, highways, 2009 orthophtos

    2006 trails, census, soils/sand&gravel/subsoils, hydrography, environmental corridors, fire departments, 100yr floodplains, alder districts, parks, admin boundaries, watersheds, hunting lands, bike trails, prime farmland, rescue squads, PLSS, school districts, telephone exchanges, MCDs, water table (within 3ft), watersheds/subwatersheds
    2006 land use (via Bay Lake RPC)

  • Lafayette County: 2012 tax parcels and assessment data

  • Langlade County
    2011 tax parcels and assessment data, addresses, supervisory districts, wards, floodplain, county forests, hydro, municipalities. roads, ROW, PLSS, soils, zip codes, zoning
  • Lincoln County:
    2012 tax parcels, addresses, flood plains, plss, roads, soils, zoning
    2006 & 2007 10ft contours, landfill inventory, cultural and recreational data, infrastructure and utilities, tax parcels, soils, geology, watersheds, wetlands, other hydrography; 2001 and 2005 orthophotos.
  • Madison, City of:
    2012 street centerlines, bike routes/paths/facilities, park and ride locations, rails (via MPO)

    2011 street centerlines, intersection controls, and traffic information (via MPO)

    2010 street centerlines, private streets, water utility easements, parcels and ownership, hydrography, municipal boundaries, place names, PLSS, sanitary/storm sewer easements (via City Engineer's Office)
    2010 bike routes, alder districts, bus routes, historic preservation districts (via MPO)

    2009 street centerlines, bike paths, park&ride locations, railroads, police sectors, school districts, MMSD school attendance areas

    2008 MCDs, bus routes, TAZ, bike routes and paths, parks, watersheds, zoning (via MPO)
    2008 City Engineer geodatabases: streets, parcels, ROW, water utilitiy & sewer easements, hydro, railroads, tax parcels, private streets

    2007 color 6" orthos, 2007 color IR 6" orthos (via City Engineer's Office)

    2005/2000/1990 land use (via MPO)
    2005 LIDAR floating point grids, point clouds, breaklines, 2ft contours (via City Engineer's Office)

  • Manitowoc County:
    2012 tax parcels/assessment data, address points, street centerlines, 2010 land use, zoning, municipal boundaries
    2010 tax parcels/assessment data.
    2008 land use (via Bay Lake RPC)

  • Marinette County:
    2012 tax parcels and assessment data
    2001 and 2008 land use (via Bay Lake RPC)
  • Marquette County: 2005 1ft b/w orthophotos, MrSID format.
  • Menominee County:
    2012 tax parcels assessment data, contours, hydro, roads, buildings (.dwg files)
    2007 tax parcels/assessment data, contours, hydrology, roads, building footprints (.dwg files)
  • Milwaukee County:
    2013 tax parcels and assessment data
    2012 tax parcels and assessment data, streets

    2009 (and historic 2007, 2005, 1995) Automated Mapping and Land Information System data:
    2 foot contours, detailed planimetric/transportation, environmental, utilities, geodetic control.

    Orthophotos: 6in_2010, 1ft_2007, 1ft_2005.

    Cadastral/Parcel data 2007, 2008, 2009.

    1963, 1970, 1980, 1990, 2000 land use (via SEWRPC)

  • Monroe County:
    2012 tax parcels and assessment data, countywide geodatabase: recreation, roads, railroads, trails, hydro, drainage, county forests, political districts, MCD's, unincorporated places, PLSS, school districts, existing and future land use, zoning, 2ft contours, 2010 orthophotos (MrSID format).

    2011 tax parcels/assessment data

    2009 tax parcels/assessment data, addresses, roads, cemeteries, EMS, fire departments, railroads, zip codes, CREP easements,DNR lands, soils, hydro, geodedic control, school districts, MCDs, zoning
  • Oconto County:
    2012 tax parcels and assessment data, roads, town boundaries
    2009 tax parcels, hydrology, soils, wetlands, PLSS
    2007 land use (via Bay Lake RPC)
    2005 tax parcels, hydrology, soils, wetlands, PLSS
    2004 orthophotos
  • Oneida County:
    2012 addresses, airport, aldermanic dist., boat launches, buildings, civil divisions, forests, driveways, ESNZones, gravel pits, roads, trails, railroads, municipalities, PLSS, tax parcels and assesssment data, soils, voting wards, hydro, watersheds, wetlands, zip code areas

    2011 tax parcels/assessment data, airports, aldermanic districts, boat launches, 2005 buildings, 2010 buildings, forests, roads, trails, municipal boundaries, PLSS, voting wards, hydro, watersheds, wetlands, zip codes, railroads

    2009 tax parcels/assessment data, roads, addresses, PLSS, water, zoning, 2005 building footprints, jurisdictional boundaries, 2005 color orthophotos.

  • Outagamie County : Data AVAILABLE ONLINE (Click Here)
    2013 addresses, future land use, municipalities, plats, tax parcels, PLSS, roads, zoning

    2012 2ft contours, addresses, airport zoning, construction lines, hydro, future land use, municipalities, plats, PLSS, roads/ROW, tax parcels, zoning
    (via ECWRPC)
    2007 existing land use.
  • Ozaukee County:
  • 2013 addresses, tax parcels and assessment data, civil divisions, plats, PLSS, roads, intersections points, emergency service zones, supervisory districts, floodplains, hydro, soils, wetlands, shoreland zoing

    2005 contours, land use, street centerlines, tax parcels, natural areas, parks and open space, environmental corridors, groundwater inventory, watersheds, detailed planimetric data
    2005 orthophotos.
    (via SEWRPC): 1963, 1970, 1980, 1990, 2000, 2010 land use

  • Pepin County:
    2012 tax parcels and assessment data, municipal boundaries
    2009 tax parcels, addresses, roads, school districts, hydro, roads, boundaries.

  • Pierce County:
    2013 roads, address points, flood plains, hydro, parks, railroads, soils, watersheds, zoning
    2012 tax parcels and assessent data, school districts, minor civil divisions

  • Polk County:
    2013 addresses, tax parcels and assessment data, municipal boundaries, roads, zoning districts
    2011 tax parcels and assessment data, streets, public lands, hydro
  • Portage County:
    2013 addresses, municipalities, tax parcels and assessment data, roads, zoning

    2010 tax parcels/assessment data, existing land use, MCDs, contours, flood hazards, zoning, banks, boat landings, campgrounds, cemeteries, churches, elder care facilities, emergency comm towers, FEMA LOMC, fire stations, government offices, gravel pits, health care sites, jails, medical facilities, planning facilities, police stations, 2010 flood damage-roads, schools, shelters, substations, telecomm, town halls, voting places, warning sirens, water treatment, municipal utilities, well locations, wetlands, soils

    2010 orthos
    2008 rural and urban landuse, 2000 and 2005 spring orthophotos.

  • Price County:
    2013 tax parcels and assessment data, municipalities, roads, addresses, zoning
  • Racine County:
    2012 tax parcels/assessment data, 2ft contours, MCDs, environmental corridors, 100yr floodplain, land use, roads, soils, hydro, zoning

    2005 tax parcels, orthophotos, hydrology, land use, roads, wetlands, zoning, environmental corridors.
    (via SEWRPC): 1963, 1970, 1980, 1990, 2000, 2010 land use
  • Rock County:
    2012 tax parcels and assessment data, and countywide geodatabase layers listed below
    2009 tax parcels and assessment data, airports, floodplains, hydrography, 2000 land use, MCDs, transportation, school districts, PLSS, zoning.

  • Rusk County: 2009 countywide data in AutoCAD format (.dwg)
  • St. Croix County:
    2007 tax parcels, environmental corridors, hydrology, minor civil divisions, subdivisions, land cover, land use
    2004 1ft orthophotos
  • Sauk County:
    2013 addresses, municipal boundaries, tax parcels and assessment data, roads, zoning
    2007 (and select 2011 updates) roads, wetlands, parcels, hydrology, contour grids, 2005 orthophotos.
  • Sawyer County:
    2012 tax parcels, municipal boundaries, streets/address ranges, address points, zoning
    2007 hydrology, PLSS, reservation boundary, municipal boundaries, roads, soils, watersheds, wetlands, 2006 orthophotos.
  • Sheboygan, City of: 2009 transportation, general features, hydro, tax parcels.
  • Sheboygan County:
    2006 tax parcels and assessment data (except for the City of Sheboygan).
    2002 land use (via Bay Lake RPC)
  • Southeastern Wisconsin Regional Planning Commission (Also see Kenosha, Milwaukee, Ozaukee, Racine, Walworth, Washington, & Waukesha counties): 1963, 1970, 1980, 1990, 2000, 2010 land use; watershed boundaries.

  • Vernon County: 2011 tax parcels and assessment data

  • Vilas County:
    2011 (and 2010, 2009) tax parcels/assessment data, addresses, roads, cemeteries, EMS, fire departments, railroads, zip codes, CREP easements,DNR lands, soils, hydro, geodedic control, school districts, MCDs, zoning
    2005 1ft color orthophotography (MrSID format)

  • Walworth County:
    2013 tax parcels and assessment data, PLSS, easements, plats, ROW, addresses, roads, hydro, zoning
    (via SEWRPC):
    1963, 1970, 1980, 1990, 2000, 2010 land use

  • Washington County: 2010 tax parcels/assessment.
    (via SEWRPC): 1963, 1970, 1980, 1990, 2000, 2010 land use
  • Waukesha County:
    2013 addresses, tax parcels and assessment data, civil divisions, hydro, roads, PLSS

    2007-2009 tax parcels, roads, railroads, hydrology, subdivisions, plss, environmental data, transportation, soils, 2ft contours, school districts, supervisory districts, wetlands, wireless transmission facilities, zoning, census, FEMA floodplains, geology, soils, hydrography, wetlands, trails, water table elevation, admin districts/boundaries, MCDs, 2005 orthophotos.
    (via SEWRPC): 1963, 1970, 1980, 1990, 2000, 2010 land use
  • Waupaca County: AVAILABLE ONLINE (except contours) (Click Here)
    2013 addressing, adminsitrative districts, miscellaneous, natrual features, tax parcels and assessment data, parks and recreation, planning, plss, solid waste, zoning

    2010 addressing, adminsitrative districts, 2ft contours, natrual features, tax parcels and assessment data, parks and recreation, planning, plss, solid waste, zoning. Historic: 2007 forest programs, hydrology, parcels, railroads, road centerlines, zoning, land use,

    2005 orthophotos.
  • Waushara County (via ECWPRC): 2000-2004 existing land use (by township).

  • Winnebago County:
    2011 2ft contours
    2010 tax parcels, streets, rails, hydro, mcds, pavement
    2007 existing land use (via ECWRPC)

  • Wood County: AVAILABLE ONLINE (Click Here)
    2013 tax parcels and assessment data, plats, addresses, building footprints, electrical lines, driveways, DNR fire response zones, zip code areas, supervisory districts, municipal wards, election district combos, FEMA flood data, forests, hydro, wetlands, land use, parks/rec areas, school districts, schools, soils, town halls, unincorporated names, watersheds, airport, bridges, streets, railroads, snowmobile trails, zoning

    2008 tax parcels and assessment data, PLSS, school districts, hydrography, transportation (roads, rails, ROW, etc.)

Online Geospatial Data Sources

Wisconsin Digital Orthophotos:
Comprehensive statewide USDA-NAIP (1m for 2005, 2m for 2006, 1ft urban areas for 2007, 1m for 2008, 1m for 2010) digital aerial photography for Wisconsin is available from the WisconsinView.org

About WisconsinView:

WisconsinView became a full member of the AmericaView Inc. consortium in April 2004. WisconsinView is built on a partnership between the University of Wisconsin - Madison's Environmental Remote Sensing Center ( ERSC ), and the State Cartographer's Office ( SCO ). The WisconsinView consortium is growing and has enlisted a number of key players in geospatial and information technology.

Wisconsin Data Sources:

A Handbook of Web-based Environmental Geospatial Data for Wisconsin Planners
This document is composed of information about environmental geospatial data and data sources that we expect planners and professionals in fields related to natural resources would be seeking. The information contained in this document primarily came from exercises in two classes (Planning for the Ecological City and GIS for Planners)in the Department of Urban and Regional Planning at the University of Wisconsin –Madison, offered by Prof. Asli Göçmen between 2008 and 2012.

WI CENSUS and other statistical data from the UW Applied Population Laboratory
A quick and simple way to view and download current and historical US Census statistical data and geospatial boundary files for Wisconsin from the Applied Population Lab. Most data is available in GIS-ready format(s).

WISCLINC - The Wisconsin Land Information Clearinghouse
WISCLINC is a clearinghouse effort in Wisconsin maintained by the Wisconsin State Cartographer's Office. WISCLINC is part of a network of NSDI nodes which contribute to the progress of federal initiatives such as Geospatial One Stop and the National Map. WISCLINC pulls together records of geospatial data, land records web sites and statewide land information inventory survey.

WI County Web Mapping Applications
A current list of Wisconsin counties that host online web mapping applications for viewing local GIS data. This list is maintained by David Hart of the UW Sea Grant Institute.

WI DATCP (Dept. of Agriculture, Trade, and Consumer Protection) Web Mapping Services
From gypsy moth treatment sites, to Wisconsin's nutrient management regulations and specialty meat production, view a series of web mapping applications that display these datasets and more.

WI DNR Interactive Web Mapping Applications
A list of 14 web mapping applications hosted by the DNR that include subjects such as floodplain management, DNR managed lands, natural heritage inventory, and others.

WI DNR's FTP site
Download data directly from the public FTP web site hosted by the WI DNR.

Wisconsin Geological and Natural History Survey (WGNHS) GIS Data and Maps
The WGNHS provides downloadable maps and GIS data in shapefile and coverage formats. These include bedrock geology, glacial geology, water-table elevation maps, etc.

Wisconsin Land cover (WISCLAND) - Wisconsin Land cover data
WISCLAND is the Wisconsin Initiative for Statewide Cooperation on Landscape Analysis and Data, a partnership of public and private organizations seeking to facilitate landscape GIS data development and analysis.

Wisconsin Legislative Data form the WI State Legislature/Redistricting
Find relevant Wisconsin data for wards, congressional districts, senate and assembly boundaries, and other legislative information here.

U.S. Data Sources:

ArcGIS Online Maps and Tasks
ArcGIS Online hosts maps and tasks that can be used in ArcGIS clients. The maps and tasks are generally worldwide in coverage and most are updated at least twice per year. For more details about individual maps and tasks, see:

Atlas of the Biosphere : Center for Sustainability and the Global Environment (SAGE)
"The idea behind this website is simple: gather as much information about the environment as possible, and deliver it to as many people as possible. We are dedicated to bringing environmental information to the widest possible audience. Although we specifically target high school to university students and teachers, anyone can benefit from a stroll through our collection".

Atlas of Hisotrical County Boundaries
The Atlas of Historical County Boundaries is meant to be a resource for people seeking records of past events, and people trying to analyze, interpret and display county-based historical data like returns of elections and censuses, and for people working on state and local history projects. The special interests of those potential users range from history to demography, economics, genealogy, geography, law, and politics. While many of these goals can be achieved using the Atlas' Interactive Maps, the downloadable data can be used with various GIS (Geographic Information Systems) programs to create specialized projects.

Census Bureau TIGER and TIGER/Line Mapping Center
Topologically Integrated Geographic Encoding and Referencing (TIGER) product information from the US Census Bureau, including up-to-date U.S. Census boundary shapefiles and relationship files.

Census Bureau "On The Map" - Employment and Worker Statistics/Maps
OnTheMap Version 6 is the sixth generation of OnTheMap, a web-based mapping and reporting application that shows where workers are employed and where they live. It also provides companion reports on age, earnings, industry distributions, race, ethnicity, educational attainment, and sex.

Cropland Data Layer (USDA)
The Spatial Analysis Reseach Section released the 2009 Cropland Data Layer (CDL) for ALL Continental US States. All state products were issued in unsmoothed format, with the exception of Florida (i.e., citrus smoothing applied) with associated metadata. The file sizes are quite large and range between 13 - 100 megabytes per download.

DATA.GOV (Tabular and Statistical data from federal agencies)

Economic Data Resources : USDA ERS
ERS's highly trained economists and social scientists conduct research, analyze food and commodity markets, produce policy studies, and develop economic and statistical indicators. The agency’s research program is aimed at the information needs of USDA, other public policy officials, and the research community. ERS information and analysis is also used by the media, trade associations, public interest groups, and the general public. The Agency's work is structured among four Divisions:

ELEVATION DATA: United States Interagency Elevation Inventory
The U.S. Interagency Elevation Inventory displays high-accuracy topographic and bathymetric data for the United States and its territories. The project is a collaborative effort between NOAA and the U.S. Geological Survey, with contributions from the Federal Emergency Management Agency. This resource is a comprehensive, nationwide listing of known high-accuracy topographic data, including lidar and IfSAR, and bathymetric data, including NOAA hydrographic surveys, multibeam data, and bathymetric lidar. This inventory was completed May 2012 and will be updated annually.
The information provided for each elevation dataset includes many attributes such as vertical accuracy, point spacing, and date of collection. A direct link to access the data or information about the contact organization is also available through the inventory.

EPA Smart Location Database: A National Dataset for Characterizing Accessibility and the Built Environment at the Neighborhood Scale
A large body of research has demonstrated that land use and the built environment can have a significant effect on travel behavior. An EPA-funded meta-analysis of this literature, "Travel and the Built Environment," summarized the measurable effects of built environment variables on residents’ travel behavior. It found that driving is most strongly related to measures of destination accessibility and street network design, while walking is most strongly related to measures of land use diversity, intersection density, and the number of destinations within walking distance.
These findings can help to inform travel demand studies as well as land use scenario impact analysis. However developing data about these built environment characteristics can be expensive and time consuming. EPA’s Smart Location Database makes such data more widely accessible.

FEMA Map Service Center
Flood Rate Insurance Maps [FIRMs] on the Web

Forest Service Geospatial Clearinghouse (USFS)
Raster and vector forest data, state and private forestry assessment data, maps, etc.

Since 2005 Geodata.gov has provided the largest web-based access at a single-point for maps, government data, and geospatial services—the Geospatial One Stop. Data.gov, launched in May 2009, provides access to over 400,000 (primarily geospatial) datasets from 172 agencies across the Federal government. On October 1, 2011, Geodata.gov moved to Geo.Data.gov, within the Data.gov infrastructure.

Geospatial Data Gateway
USDA Natural Resources Conservation Service. This site includes county and state level data, including but not limited to: DRGs, DEMs, census data, land cover, quad indexes, digital orthophotos, etc.

The GIS Data Depot
(GeoCommunity Data Clearinghouse) Available data include DOQQs, DRGs, DEMs, Census data, hydrology, land use/land cover, etc.

Historic U.S. Congressional Districts - UCLA Political Science
This site provides digital boundary definitions for every U.S. Congressional District in use between 1789 and 2012. These were produced as part of NSF grant SBE-SES-0241647 between 2009 and 2013.

The National Atlas
U.S. Department of the Interior (map layers are available for download via the "Map Layers Data Warehouse". An index lists all of the map layers currently contained in nationalatlas.gov, by broad subject categories that correspond to the chapters of the National Atlas: Agriculture, Biology, Boundaries, Climate, Environment, Geology, History, Map Reference, People, Transportation, Water.

The National Atlas "Streamer"
Streamer is a new way to visualize and understand water flow across America. With Streamer you can explore our Nation's major streams by tracing upstream to their source or downstream to where they empty. In addition to making maps, Streamer creates reports about your stream traces and the places they pass through.

The National Map
(USGS) Provides public access to high-quality, geospatial data and information from multiple partners to help support decision making by resource managers and the public. The National Map is the product of a consortium of Federal, State, and local partners who provide geospatial data to enhance America's ability to access, integrate, and apply geospatial data at global, national, and local scales.

The National Spatial Data Infrastructure Clearinghouse
(NSDI) - Federal Geographic Data Committee (FGDC)

The National Wetlands Inventory
Digital wetlands data from the U.S. Fish and Wildlife Service, Branch of Habitat Assessment.

Soil Data Mart
NRCS detailed soil digital data (shapefiles) and attribute (tabular) data by county for the entire U.S. (SSURGO)

Soil Data Viewer
Soil Data Viewer is a tool built as an extension to ArcMap that allows a user to create soil-based thematic maps. The application can also be run independent of ArcMap, but output is then limited to a tabular report.

Starting the Hunt: Guide to Mostly On-Line and Mostly Free U.S. Geospatial and Attribute Data
Guide to finding free sources for U.S. geospatial data (from the University of Arkansas)

EarthExplorer: USGS Geographic Data Download
Quick links to many of the popular USGS raster datasets for direct downloading including Digital Elevation Models (DEMs), National Elevation Dataset (NED), National Land Use & Land Cover (LULC), and the National hydrology Dataset (NHD).

USGS Digital Topographic Map Download
Download free USGS topographic maps at various scales. Use the "Map Locator" to select a site, view the quad boundaries and download a PDF.

International Data Sources:

Featured: LandScan Global Population Database (Request via form above)
Using an innovative approach with Geographic Information System and Remote Sensing, ORNL's LandScan™ is the community standard for global population distribution. At approximately 1 km resolution (30" X 30"), LandScan is the finest resolution global population distribution data available and represents an ambient population (average over 24 hours). The LandScan algorithm, an R&D 100 Award Winner, uses spatial data and imagery analysis technologies and a multi-variable dasymetric modeling approach to disaggregate census counts within an administrative boundary. Since no single population distribution model can account for the differences in spatial data availability, quality, scale, and accuracy as well as the differences in cultural settlement practices, LandScan population distribution models are tailored to match the data conditions and geographical nature of each individual country and region.

GIS data by country
A comprehensive list of online international data sources from Stanford University.

Alphabetical Listing of Resources:

Antarctic Digital Database
The SCAR Antarctic Digital Database (ADD) is a seamless compilation of topographic data for the continent of Antarctica to 60°S. The SCAR ADD consists of geographic information layers including coastline, ice-shelf grounding line, rock outcrop, elevation data and human-presence features such as Research Station locations. It is derived from a wide variety of sources and aims to provide the best currently available data in Antarctica. All data are provided at the original scale of the source data and as generalised data suitable for smaller map scales of 1:1 million and 1:10 million. Users should note that the resolution of the original data varies widely, with source data ranging from 1:10,000 scale maps to much coarser sources.

CARPE - Central African Regional Program for the Environment
An interactive web GIS for the Congo Basin and the CARPE Data Explorer lets you search and browse CARPE-related data and metadata. You can search by defining an area of interest, or by specifying a content type and an optional keyword. Alternatively, you can browse through data organized in various categories such a CBFP landscapes, countries, etc.

China Historical GIS - China Historical Geographic Information System
The China Historical Geographic Information System, CHGIS, project was launched in January 2001 to establish a database of populated places and historical administrative units for the period of Chinese history between 222 BCE and 1911 CE. CHGIS provides a base GIS platform for researchers to use in spatial analysis, temporal statistical modeling, and representation of selected historical units as digital maps.

CIESIN - Center for International Earth Science Information Network
CIESIN works at the intersection of the social, natural, and information sciences, and specializes in on-line data and information management, spatial data integration and training, and interdisciplinary research related to human interactions in the environment.

Famine Early Warning Systems Network
The U.S. Agency for International Development (USAID) Famine Early Warning Systems Network (FEWS NET) is an information system designed to identify problems in the food supply system that potentially lead to famine or other food-insecure conditions in sub-Saharan Africa, Afghanistan, Central America, and Haiti.

FAO - GIS Gateway
GIS gateway to geosaptial resources within the Food and Agricultural Organization of the United Nations.
Access the FAO GeoNetwork site to search and download spatial data.

France: Open Access to French Government Data
Beta version as of December 2011. Open Access Portal to French Government inforamtion.

GeoCommons: Open Analysis, Data, and Maps.
GeoCommons is the public community of GeoIQ users who are building an open repository of data and maps for the world. The GeoIQ platform includes a large number of features that empower you to easily access, visualize and analyze your data.

GeoGratis - GIS data for Canada
GeoGratis is a portal provided by the Earth Sciences Sector (ESS) of Natural Resources Canada (NRCan) which provides geospatial data at no cost via your Web browser.

Geoscience Australia
Free GIS data downloads from the Australian government.

Global Land Cover Facility
The GLCF is a center for land cover science with a focus on research using remotely sensed satellite data and products to assess land cover change for local to global systems. Direct download global land cover data for use in a GIS.

Go-Geo! - GIS Database for the United Kingdom
Go-Geo! is a tool designed to help you find details about geospatial datasets and resources within Great Britain.

Map Library.org - Detailed World Administrative Boundaries - From the Mapmaker Trust, Scotland.
Detailed second-level administrative boundary data for countries of the world. Check data sources for authenticity.

Natural Earth
Natural Earth is a public domain map dataset available at 1:10m, 1:50m, and 1:110 million scales. Featuring tightly integrated vector and raster data, with Natural Earth you can make a variety of visually pleasing, well-crafted maps with cartography or GIS software.

Oak Ridge National Labs Distributed Active Archive Center (DAAC)
(Biogeochemical and ecological data useful for studying environmental processes. These data have been collected on the ground, from aircraft, or by satellite or have been generated by computer models. The extent of data ranges from site-specific to global, and durations range from days to years.)

SAFARI - Southern Africa Regional Science Initiative
Visit the FTP download site for direct access to soils, hydrology, climate, satellite imagery,vegetation and wetlands data for the southern Africa region.

SAGE - UW-Madison Center for Sustainability and the Global Environment
From the SAGE website: "SAGE aims to improve our understanding of the global environment, and how it is being affected by human activities. To achieve this goal, we have been developing maps, computer models and datasets to describe the behavior of Earth’s terrestrial ecosystems, hydrological systems, and climate. We have developed a new generation of global ecosystem (IBIS) and terrestrial hydrology (THMB) models, as well as fully coupled climate-vegetation models (GENESIS-IBIS and CCM3-IBIS). In addition, we have created new datasets of global ecosystems, historical land use, and land cover change, datasets specific to the Amazon Basin."

SALB - Second Administrative Level Boundaries
The Second Administrative Level Boundaries (SALB) dataset is a dataset aiming at improving the availability of information about administrative boundaries down to the second subnational level. The SALB dataset forms part of the UN geographic database and was developed in the  context of the United Nations Geographic Information Working Group (UNGIWG).

SEDAC - Socioeconomic Data and Applications Center
From CIESIN (Center for International Earth Science Information Network at Columbia University, NY).
SEDAC, the Socioeconomic Data and Applications Center, is one of the Distributed Active Archive Centers (DAACs) in the Earth Observing System Data and Information System (EOSDIS) of the U.S. National Aeronautics and Space Administration. SEDAC focuses on human interactions in the environment.

Streets/Transportation/International OpenStreetMap Data - Cloudmade.com
International streets data and transportation networks from OpenStreetMap data. Downloadable shapefiles for countries around the world!

WorldClim - Global Climate Data
WorldClim is a set of global climate layers (climate grids) with a spatial resolution of about 1 square kilometer. The data can be used for mapping and spatial modeling in a GIS or with other computer programs.







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