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Geographic Information Systems (GIS)
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Featured GIS Websites

Most Recent Site!
  • gData

    This is a beta version of a website developed as part of the Biogeomancer Project. It offers free downloads of GIS data (including administrative boundaries, inland water, roads, railroads, elevation, land cover, population) from around the world.

Previous Sites

    NASA's Socioeconomic Data and Applications Center (SEDAC) provides a search facility for quickly locating and downloading 1-kilometer (30 arc-second) resolution grids of selected species maps in GeoTIFF format. Data are available for global amphibian distributions, and for birds and mammals in the Americas. The Web site provides access to individual species distribution grids, along with family grids that show the density and distribution of species within a given family.

  • Hurricane Data Portal

    This Hurricane Data Portal is designed for viewing and studying hurricanes in the Atlantic region by utilizing various measurements by the NASA remote-sensing instruments. The portal consists of four main components: current conditions, event based, science focus, and archives.

  • Electoral Geography 2.0

    An interesting and informative website dedicated to electoral geography. Some examples of maps on the site include the results of the Cyprus presidential election, a legislative election in Taiwan, and a firearms referendum electoral map from Brazil


    A GIS from the US National Library of Medicine that helps users visually explore data from the US Environmental Protection Agency's Toxics Release Inventory and Superfund Program.

  • ESRI Mapping Center

    ESRI has designed this useful site to help people create better maps by explaining and highlighting numerous cartographic techniques and effects.

A dynamic online map viewer with 1-km spatial resolution satellite-derived vegetation condition datasets.

  • Afghanistan USGS Projects

    Interactive viewer of Afghanistan with a variety of landscape data layers. The website includes background and USGS projects descriptions.

  • Globalis

    Interactive world map from a collaboration of United Nations organizations.

  • National Institute of Justice’s MAPS (Mapping & Analysis for Public Safety) Program

    This site that uses GIS to "contribute to the advancement of crime analysis and the better understanding of criminal behavior." The web site includes areas for software, research, publications, resources, and data sharing.

  • Center for LIDAR Information Coordination and Knowledge (CLICK)

    A new USGS website about LIDAR data with the goal of facilitating data access, user coordination and education of LIDAR remote sensing for scientific needs.

  • Most Detailed Antarctica Map

    The most detailed map ever produced of Antarctica has been created by researchers at the University of Colorado’s National Snow and Ice Data Center through combining MODIS and RADARSAT-1 satellite imagery data.

  • UK Surname Mapper

    A website which maps names against areas of the UK where they are most common helping shed light on where some of our families come from.

  • Ogle Earth

    If you’re a fan of Google Earth or you want to learn more about what it can do, you can read the Ogle Earth blog. Be sure to look for the links to tools and content for Google Earth along the right side of the page.

  • Shaded Relief

    This site gives cartographic tips on the presentation of shaded relief and related raster art on maps.

  • Batch Geocode

    This site offers a free, web-based service that usually is very expensive, batch geocoding. This could be very popular in the Business School, or with anyone who doesn't have time to learn GIS, but needs to geocode multiple addresses. You can even view your points on a map at the end if you'd like.

  • Mappr!

    Mappr! allows individuals to upload pictures on a map of the United States in a specific geographic space. The photographs often have additional information attached to the picture.

  • Open Forum on Participatory Geographic Information Systems and Technologies serves as a global avenue for discussing issues, sharing experiences and good practices related to community mapping, participatory mapping, counter mapping, Public Participation GIS (PPGIS), Community Integrated (CiGIS), Mobile Interactive (MiGIS) and other geo-spatial information technologies and systems used to support integrated conservation and development, sustainable natural resource management and customary property rights in developing countries and First Nations. Members of the network are able to share information and lessons learned and post questions, resource documents and announcements which are relevant to the practice.

  • Geoscience Data Link

    The Geoscience Data Link is hosted by the Lamont-Doherty Earth Observatory. Visitors can search by data types, date, and regions. Includes information on marine, continental and polar environments. Includes a global bathymetry database, which allows users to look at maps and download grids.

  • GeoBase

    This portal, from Natural Resources Canada, provides free access to
    geospatial data including administrative boundaries, digital elevation
    data, geographical names, Landsat-7 imagery, and the national road network.

  • Multi-hazard Mapping Initiative

    The MMI provides an on-line advisory atlas with the goal of fostering the exchange and collection of geospatial hazards data, increasing hazard awareness, and establishing standards for map creation. Maps can be customized in a variety of ways.

  • AREI: Agricultural Resources and Environmental Indicators Database and Mapping Tool

    This site combines the Economic Research Service of the USDA with Internet mapping technology. One can map farm output, information about farm workers, inventory and sales for crops and livestock, and much more. Tables can be viewed and downloaded.

  • National Agricultural Statistics Service

    This government site is part of the US Department of Agriculture. It provides maps, charts, and historical data about crops, livestock, economics, and research. Historical data goes back to 1970. It also includes an agricultural chemical use database that allows the user to map a specific crop and the amount of pesticides used to treat it.

The field station has created two GIS maps for the intermountain region, the SAGEMAP site (management of the sage grouse and shrubsteppe systems) and the Prairie Map (management of the prairie grassland ecosystems). Both sites allow you to download data.

A worldwide population database compiled on a 30" x 30" latitude/longitude grid. Available by continent and for the world.

Seismological and geodetic data for the state. Includes links to data collections and data access, which is free.

Over 90 different substances that are emitted into the land, air, or water are monitored and reported. The site allows the user to find data, map it, and then download the output.

An online interactive mapping site with over 80 different natural resources or conservation planning data sets to view. The data cannot be downloaded at this point, but presumably will be in the future.

The authoritative source for UNEP (United Nations Environment Programme) datasets. An online database is included for searching more than 400 variables.

A large number of datasets (some free and some for a fee) from the National Center for Atmospheric Research.

A data site for information on the Snake River corridor in Wyoming. Datasets include: hydrography, land cover, land ownership, DEMs, aerial photography, and the National Wetlands inventory.

A Web mapping site that includes the ability to accurately assess latitude and longitude to the building level using interactive maps and aerial photography.

An Internet map server that allows the user to view "real-time observations and forecasts from major U.S. estuaries and seaports, adjacent coastal regions, and the Great Lakes." Included are meteorological, oceanographic, river, and water quality data

A GIS-based inventory of water quality standards for the state of California.

State by state soil data from the USDA/NRCS as Arc/INFO export format files

This project from the United Nations Office of the Coordination of Humanitarian Affairs contains a large number of maps "providing humanitarian content in cartographic form."

A resource for finding natural resources and environmental data from the USDA, Natural Resources Conservation Service, the Farm Services Agency, and Rural Development.

Two maps showing the distribution of SARS in China and throughout the world. The China map allows you to find the exact buildings where infections have taken place.

Available through CIESIN, the data sets include boundaries, demographic, and socioeconomic variables.

Site includes information about GIS activities within the EU, a documents archive, and a searchable database of current projects.

Free ungeoreferenced aerial photos and orthophotos of New Zealand.

Besides downloadable data, the site includes maps, a climate atlas, and historical data summaries. The area covered includes: Colorado, Iowa, Kansas, Nebraska, South Dakota, and Wyoming.

The site includes a link to the Nevada Mountain Atlas, an interactive ArcIMS application, and to the metadata used in the research.

A site pulled together by GeoCommunity with maps and data from NIMA, CNN, EarthViewer, and more.

A wealth of information about the Caspian Sea. Towards the bottom you'll find satellite data and a GIS data link at the very bottom of the page.

A site from the University of California exploring inequality through the use of downloadable maps and graphics.

Find online maps, data from the Mars Exploration Rover Project, and global GIS data.
Earthshots is designed to track environmental change by showing before and after satellite imagery (1972-present). Section titles include: disaster, forest, geology, desert, city, and agriculture.
Spatial and GIS databases include: dams, census data, DOQs, DEMs, Landsat imagery, and more.
Find and view Landsat imagery from Landsat 4, 5, and 7. The display includes latitude/longitude as well as path and row number.
A site created and maintained by the Alaska Earthquake Information Center. Information on each earthquake includes magnitude, latitude, longitude, depth, and the time of occurrence. Maps are included for every event.
Data available includes topographic, thematic, geothematic, satellite imagery, geodetic and GPS.
A large site from the Topographic Engineering Center for the Army. It includes information about GIS data, software, visualization, web mapping, and much more.
The USGS has mounted 10-meter resolution elevation data covering the areas where fires occurred over the last summer. Included are the fires from Oregon, California, Arizona, and Colorado.
A clearinghouse of soil survey information including Web sites, CD-ROMs, data sets, and studies.
The mapping and analysis tool on this NOAA site allows the user to choose a location and storm parameters in order to plot hurricane scenarios. The entire tropical cyclone dataset (1851-2001) can be downloaded.
The Food and Agriculture Organization of the United Nations maintains and populates this site full of data on fisheries, agriculture, nutrition, forestry and food quality control.
This week Russell Lake broke free from the dirt dam created by the Hubbard Glacier. At this site, you can download the water gage data from June through August.
Downloadable data from an international scientific initiative to study the links between the atmosphere and the land in the southern African region.
Images of Earth created by the EROS Data Center from the Landsat-7 satellite. The images were chosen for their aesthetic appeal. Enjoy!
The site has downloadable free Excel spreadsheets covering statistics for noise pollution, air and water quality, land use, wildlife, and much more.
Peter Shary has created a site for information on DEMs and landscape data. Links are available to many countries, regions, and states.

An interesting site outlining projects in which GIS has been used to integrate local knowledge when considering conservation and development initiatives.

An extensive list of statistics for Africa south of the Sahara desert.  Sites include the Africa Data Dissemination Service, the South Africa Department of Health, and UNICEF - Progress of Nations.

Make dozens of maps of Canada on a variety of topics ranging from geology to health behaviors.  Links to statistical data from the Canadian Census Bureau are included.

The National Snow and Ice Data Center has released data specifically for the Ross Ice Sheet of Western Antarctica.  The tables list season/flight, date, latitude, longitude, and thickness.  The data is available in ASCII text format or via FTP.

These two digital maps, which may be downloaded in Arc/Info or shapefile format, accompany the Commission for Environmental Cooperation's Ecological Regions of North America Report published in November 1997.

This site from the Sustainable Development Department, Food and Agricultural Organization of the United Nations, contains free downloadable maps from the World Food Summit, of the World soil resources, and of the SOTER East Africa soil map.  The maps are in Arc/Info or shapefile format. 

A site for free data about the UK (England, Scotland, Wales, Northern Ireland).  The data catalog includes information at the neighborhood level on economic deprivation, education, population, health, and work.  

Looking for imagery from NASA?  This site includes 2,234 records in the database of imagery, visualizations, and animations of the Earth.  Searching is done through a list of topics or by keyword.  

A wealth of information is contained in this USGS site including data and satellite imagery for the Arctic Wildlife Refuge, the Bering and Chukchi sea, water resources, land resources, and national wetland grids.

A web page of GIS data  and maps about Afghanistan collected by GeoCommunities.  Includes imagery, place name data files, and public domain data.  Not all of the data is free.

Daymet is a source for daily United States meteorological data including temperature, precipitation, humidity, and radiation.  Eighteen years of back data (1980-1997) are also included on the site.  Use Internet Explorer for the free downloads.

Hard to find traffic data for the San Francisco Bay area.  The site includes information from 1998 - 2001 with downloadable tabular files available.

The University of Melbourne has created this site to introduce specific GIS theories including raster and terrain analysis, buffers, and neighborhood operations.  A free Shockwave plug-in must be downloaded to access the interactive modules.

This site includes interactive maps as well as the data layers for transportation technologies, Indian lands, solar radiation resources, and wind resources.

The China Data Center houses a large amount of GIS data, some of it downloadable from the Web site, including boundaries, soil maps, road and river networks, major cities, temperature, precipitation, and sulfur dioxide emissions.  Click on the "data" link at the top of the page.

Data sets created by the California Department of Forestry and Fire Protection are housed on this site and downloadable in ARC/INFO export format.  Layers include: bioregions, land cover change, nested watersheds, hardwood and redwood vegetations, and mean annual rainfall.

A site produced by the U.S. Fish & Wildlife Service designed to allowing viewing of wetlands across the United States.  Maps can be printed or data downloaded in ARC/INFO or ArcView formats.

The Institute is part of the University of Utah with their primary foci being geothermal and petroleum research.  They house geothermal data sets sponsored by the Geothermal Energy Program including: The Geysers, California; Cove Fort, Utah; Dixie Valley, Nevada; and Awibengkok, Indonesia.

Developed by the Environmental Protection Agency, this set of data "contains information about surface water features such as lakes, ponds, streams, rivers, springs, and wells."  It allows you to see the "reach" of the water, which is useful for analyzing the effect of pollutants on the water supply.  The data is freely downloadable in ARC/INFO format. 

A site designed to provide data for the redistricting of the state following the 2000 Census.  The site includes downloadable census data from 1990 and 2000. 

Data is available in ArcView and ARC/INFO formats and includes: administrative units, arable lands, coastline information, land cover, pasture lands, population density, drainage basins and wetlands. 

Data from this site is intended to inform decision makers about potential problems in the food supply system that might potentially lead to famine, flood, or other food-insecure conditions.  Data includes satellite imagery, agricultural statistics, and statistics.

This site contains soil, landscape, and climatic data for all of Canada and serves as the national archive for land resources information.  Files are in ArcView and ARC/INFO formats.  

A site launched by the World Resources Institute (WRI) in February, 2000.  It maps forest development activities around the world.  After registering for free, metadata and data for Cameroon, Canada, and Gabon are available.  

Taken from the "Atlas of United States Trees" by Elbert L. Little, Jr., this site includes maps of the range of tree species in North America.  The files are available in ArcView shapefile format as well as in PDF and ZIP file format.

INEGI provides geographic, demographic and economic information for Mexico.  The data and information is presented in spreadsheet fashion in either Spanish and English. 

Search for a multitude of hazardous waste sites to find data on drinking water, hazardous waste and toxic release figures.  The results include an address field that can be used for geocoding.

A site containing jpeg maps of Tibet before 1950, the establishment of the Chinese Administration.  The Landsat images are overlaid with rivers, roads and town names.

CTR is an international public-private partnership (including Stanford) dedicated to understanding the consequences of natural hazards in the Pacific Rim.  The site includes maps and downloadable data including natural hazards, demographic data, physiography and infrastructure.

This interactive map service presents environmental variables and parameters on the environment in the Arctic region.

Need weather data from Oregon over the last 40 years?  This is a good place to go.  Download data including precipitation, temperature, wind, and sky cover all in tabular format for the state.

The United States Census Bureau has begun to release data from Census 2000.  The Web pages include available data, release schedules for the next two years, and maps for viewing.

This atlas, with all maps made using a GIS, is designed to help stakeholders address the cross-border issues in the San Diego-Tijuana border area.  Topics covered (all with accompanying maps, text, and photos) include land use, water and sewage infrastructure, transportation, population, employment, and slope, fault and flood hazards.

Downloadable data from GeoCommunity focusing on the 2000 Presidential election.  Election results are available by state and for many states, by county.  A separate download is available for the state of Florida.

Two types of geospatial data are available for downloading: National Transportation Atlas data with data consisting of transportation networks and transportation facilities, and the North American Transportation Atlas data with information from the members of NAFTA.  A data converter can be downloaded to convert the data into many formats including ArcView and ARC/INFO.

Sponsored by the United Nations Environment Programme, this Web site provides primarily data for the Arctic regions, including base maps, protected areas and biodiversity.

Explore ESRI's many examples of bringing GIS to the Internet.  See demos of sites built with ArcIMS, MapObjects IMS, and ArcViewIMS software. The sites let you browse through GIS applications in fields such as tourism, demography, climate, health, government and more.

Designed to facilitate access to a wide range of environmental information, this Web site includes information by organization, geographic area, theme and data type.

The Society was formed to assist conservationists worldwide in using GIS.  Their site includes data links, scholarships and programs, and a table of contents for Conservation Geography.

The site includes a wealth of information about Sydney, site of the Summer 2000 Olympics, as well as a searchable database of spatial data resources.

A Bureau of Land Management site containing geographic information representing the Public Land Survey System of the United States.  Data is collected on a township basis.

Statistics and maps for hundreds of population centers throughout the world.  For some areas it is possible to view changes over time in population and population density for administrative areas.

The place to go to get GIS data on our National Parks.  The site includes data sets for downloading, examples of GIS in use, and many useful links to people, resources and reference guides.

This site provides data and analysis on land use, soil erosion and soil quality, water quality, wetlands, and other issues regarding the conservation and use of natural resources.



Last modified: February 10, 2009

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