Harvard Geospatial Library
Harvard-MIT Data Center
of Digital Elevation Data
Descriptions of elevation and bathymetric datasets that are available
as ASCII files. Includes a section on available software for display
and manipulation of data.
Identifies data and information resources related to global environmental
change and sustainable development. Facilitates simultaneous search
and retrieval across diverse databases worldwide.
Extractor - USGS
Extract coastline segments bounded by a specified latitude/longitude
range in Mapgen, Arc ungenerate, Matlab and Splus formats.
Private data agency that has both free and purchasable data sets.
An organization that promotes the diffusion of knowledge concerning
climates, oceans, waste, environment, forestry, fisheries, ecology,
water, vegetation, evolution, animals, world’s plants, earth biodiversity
and others organisms.
Commercial vendor that produces custom GIS data.
offers two files of thousands of place names in shape and mid/mif
on Global Climate Change
A wealth of data from the NASA Goddard Institute for Space Studies.
Topics include Global Climate Modeling; Earth Observations including
climatology, radiative fluxes and storm patterns; Climate Impacts
and Forcings due to aerosols, carbon dioxide and methane; and Astrophysics.
Commercial data vendor run by the makers of MapInfo.
Satellite Active Archive
A digital library of real-time and historical satellite data from
NOAA's Polar-orbiting Operational Environmental Satellites (POES).
The system allows users to search satellite data inventories, preview
sub-sampled Earth images of that data and download the actual data
for further processing and analysis.
Image Home Page
information about the French SPOT satellite: how it works, how to
use the data, and where to buy it.
Data Dissemination Service
A joint effort of the U.S. Assistance for International Development
and the EROS Data Center of the U.S. Geological Survey
Hosted by the Australian Antarctic Division of the Department of the
Environment and Heritage
Courtesy of the British Antarctic Survey; in ARC/INFO export format
for Topographic Information
at Canada's national topographic mapping agency
sells data including streets
offers a 22,232-record file of place names derived from the NIMA GNS
a site for free data
of the Caribbean Region
Environmentally-important organisms (conch, finwhale, spermwhale, humback,
rightwhale, lobster, shrimp, manatee, coral reefs, seagrass and the
wetlands) and an overview of natural resources and human activities,
including five major ecosystem types, 11 major habitat types, and 191
Dimensions Data Collection
Among the many, many data sets are digital administrative boundaries;
county-level data on population, agriculture, economics and hospitals;
and interactive access to the 1982 census of population.
offers a file of place names derived from the NIMA GNS names server
offers a file of place names derived from the NIMA GNS names server
offers a 36,839-record file of place names derived from the NIMA
GNS names server
offers a 33,491-record file of place names derived from the NIMA
GNS names server
overview of the island plus a detail of Montego Bay
Boundaries of the fourteen parishes. The detailed set for Montego Bay
contains land use, enumeration district boundaries, housing topology,
perennial streams and rivers, primary, secondary and town roads, contours,
zoning, "Urban Fence", open land suitability analysis, and place names.
- Geocommunity offers a 90,000-record
file of place names derived from the NIMA GNS names server; parts one
Population Data Sets of Mexico
Includes approximately 100,000 records of geographic and census items
for Mexican states, municipalities, and localities. The geographic records
consist of state boundaries, place names, geographic coordinates of
more than 30,000 urban and metropolitan places, and elevation data for
more than 700 urban places. The census records contain estimates of
1990 population density, population by gender, and population by age
bracket). For 706 selected urban localities, the population is traced
back by decades, from 1990 to 1921, based on census documents.
map of Mexico at 1:1,000,000
offers a 28,975-record file of place names derived from the NIMA GNS
- The United Kingdom Environmental
Data Index (UKEDI) is a meta-information system on environmental
offers a 30,977-record file of place names derived from the NIMA GNS
Environmental information on the U.S.-Mexican border region.
of the Census
Directory to a number of census-related data resources including many
types of cartographic boundary files.
and state population
home page, which provides technical documentation, viewing software,
and data from the Topologically Integrated Geographic Encoding and
Referencing System. ESRI
also offers free TIGER data in shapefile format.
for Advanced Spatial Technologies
A subject-oriented index to spatial data resources. Maintained by
Anonymous FTP Service
Downloadable archives of census related data products.
Private data agency that has both free and purchasable data sets.
Provides rapid data mapping, viewing and analysis. Supports US Census
demography data (STF3A 1990) and boundary files (TIGER 1992)
Department of Transportation - Bureau of Transportation Statistics
Download the BTS background databases such as point data for place
names, polygon data for the U.S. States, counties, urbanized areas,
Federally Adjusted urbanized areas, congressional districts, metropolitan
statistical areas, Bureau of Economic Analysis Regions, National Transportation
analysis Regions, and National Parks.
EPA processed USGS Land Use and Land Cover Data
1:250,000 USGS Land Use and Land Cover data have been transformed
from GIRAS format into .e00 format. They are available for FTP downloading
by topographic quadrangle.
Data Center (U.S. Earth Resources Observation Systems Data Center)
Includes pointers to EROS affiliates and data products. The GLIS
( Information System) offers pointers to detailed descriptions
of government data products. To locate data, access the GLIS database
with full graphics capability by telnet using an X client. Text only
telnet access is also possible for other users.
Resources Conservation Service
Describes the NRCS Data resources and how to obtain the data, including
Natural Resources Inventory, Digital Orthophtography, Plants, and
Soils data .
Geographic Data Committee
Provides links to Federal Geospatial Data Links, FGDC Geospatial Information
Links by State, FGDC University Geospatial Information Links, and
FGDC Geospatial Information Links (Foreign).
United States County (HUSCO) Boundary Files
The Louisiana State University has put together in ArcView shapefile
format county boundary files for the contiguous United States for
each decade from 1790 through 1990. Not free.
InfoRain is the Bioregional Information System for the coastal temperate
rainforest of North America which stretches from San Francisco to
Kodiak Island in Alaska. It's a network of accessible and useful information
at multiple scales covering topics as disparate as demarcations of
bioregions and watersheds, salmon stock levels and travel to work
of Iowa Center for Global and Environmental Research
Very extensive, well-maintained list of Geodata Information Sources
Imagery and Mapping Agency
NIMA data products, including Digital
Terrain Elevation Data (DTEDr) Level 0 30 Arc Second Terrain Data
National Atlas of the United States
This excellent atlas allows users to download data in shapefile, dbf,
or sdts formats. Layers include boundary files at different political
levels, information on moths and butterflies, census, transportation,
water, and many other data types. Information was gathered at scales
of 1:2,000,000 or 1:2,500,000.
National Mapping Program
Directory of products, information, and services, including maps,
satellite imagery and digital geospatial data.
Sites with PLSS Data
List of sites containing PLSS (public land survey system) data, also
called TRS (township, range, section.)
Commercial data vendor (MapInfo).
Network provides free access to numerous databases, text
files, and conferences on the environment, housing, and sustainable
development. Much of the data can be downloaded in tabular form, then
linked to GIS data.
- The State
Soil Geographic (STATSGO) Database Browser is a menu-based
tool that provides access to the Natural Resources Conservation Service's
STATSGO soils database
National Geospatial Data Clearinghouse
The main node of the National Spatial Data Infrastructure including
the data products list
GIS data in ARC/INFO format from USGS.
In addition to the following
links, check ESRI's GIS
Jump Station site which is also sorted by state.
Department of Natural Resources
A gateway to data on Alaska, much of it environmental.
of Arkansas Digital Spatial Data
Available through the Center for Advanced Spatial Technologies at University
of Arkansas, Fayetteville.
Geographic Information Council
Site includes documentation of activities only. Data access not yet
Arizona State University Libraries' Map Collection
The ASU Libraries' Map Collection contains over 15,000 contemporary
and historical aerial photos related to Arizona and the Phoenix metropolitan
Environmental Resources Evaluation System (CERES)
Developing an electronic system to facilitate access to a variety of
spatial and environmental data. Among the many currently available facilities
is the CERES TIGER Data Request
system which allows users to retrieve metadata or GIS data from
the TIGER database based on user specified county, theme, and format.
of California,Teale Data Center
The GIS Technology Center maintains a data library of over 35 types
of geography. Library coverages are in ARC/INFO format and are convertible
to other file formats as required.
Geographic Information from the CA State Lands Commission GIS Unit
Wide range of data offered in ARC/INFO workspaces.
Francisco Bay Area Regional Database (BARD)
Access to DEMS, DRGs, DLGs, and DRQ's for Bay Area Region.
Diego Association of Governments (SANDAG)
Provides selected digital thematic geographic data laters in ArcInfo
(Association of Bay Area Governmants) Regional Data Center
Census, employment, retail, zip code data and projections.
use Planning Information Network (LUPIN)
Searchable index of land use and planning information (clickable map
and text interfaces)
Natural Resources Online
Colorado Data Center
(Map and Geographic Information Center) University of Connecticut, Homer
Downloadable ARC/INFO and MapInfo coverages for a wide variety of themes
in statewide, county, quadrangle and city/town data sets. Also northeast
Atlantic states data.
From the Florida Growth Management Data Network Coordinating Council
and Florida State University, Dept. of Computer Science, Florida Research
and Environmental Analysis Center. Allows user to search for data sets
according to field names, inverted index, gridded hypermap, keyword
query, or data type.
- The Georgia GIS
Natural Resources Network
Information about environmental and natural resources information for
Illinois, including a description of the Statewide
Bioregion Information Bank
Statistics, images and research.
Chicago GIS Data
from the University of Chicago Library Information System
Automated Resource Information System (MARIS)
Information on data available for order.
Spatial Data Information Service
Downloadable data organized by information may be accessed by region.
In ARC/INFO export format.
GIS data sets
A huge array of administrative districts, land boundaries, educational,
park, electoral divisions, mines,landfills, energy sites, waterstations.
And more! But unfortunately you must perfrom part of the search from
Natural Resources Commission, GIS Data Library
Form-based queries using scrollable lists allow the user to search for
available data sets.
Geospatial Data Clearinghouse
A searchable catalog of information about available, spatially-referenced
data covering geographic areas of Nebraska.
General GIS Reference
University Geospatial Information Repository
An active online repository providing geospatial data and metadata for
New York State.
York State Clearinghouse for Geographic Data.
The New York State GIS Metadata Repository, a part of the New York State
GIS Clearinghouse, is a list of geographic datasets.
Carolina Geographic Data Clearinghouse
at the North
Carolina Center for Geographic Information and Analysis,
provides information about the North Carolina Corporate Geographic Database.
Spatial and Environmental Information Clearinghouse (SEIC)
(Oklahoma State University) Provides access to an FTP site with TIGER
92 data, DLG's, DEM's, LU/LC data, wetlands inventory data, and census
Service Center for GIS
Access to statewide data sets for various themes at various scales.
Data sets also available by county. Data sets are available as zipped
ArcInfo single precision coverages.
Department of Forestry GIS data in ArcInfo export file format
Northwest Environmental Data Library
EPA facility points, Native American Lands, Soil Source Acquifers, Toxic
Release Inventory, and other data in downloadable Arc/Info export format.
Valley Institute, GIS data and map resources
Spatial Data Access: Pennsylvania's NSDI node for GIS data
Mapping and Geographic Information Consortium, GIS user group
with a number of very good links to governmental agencies throughout
Island Environmental Data Center
Island Geographic Information System (RIGIS)
Carolina Department of Natural Resources
Hydrological data, stream stage reports, oceonographic data.
GIS Planning Council
Concerned with the acquisition of geographic information and data development.
- The Texas
Natural Resources Information System (TNRIS)
is putting data sets on-line.
of Virginia Library has an extensive
list of GIS resources at their Geospatial and Statistical Data Center
Virginia GIS Data Repository
Service provided by West Virginia Division of Environmental Protection.
DEMs, basemaps, toxic release data and water data. Web-based map generation
Land Information Clearinghouse
A gateway to geospatial data and metadata, related land and resource
information, and the Wisconsin agencies which produce or maintain them.
Includes a searchable metadatabase.
Dept. of Natural Resources Geographic Services Section
Valuable information on statewide data sets held by the Wisconsin DNR
including these data
General GIS references available on the Internet include a variety of GIS Dictionaries, Bibliographies, and compilatioin resource lists of GIS related Internet sites.
Copyright 1999 by the President and Fellows of Harvard College
GIS List Serves and Discussion Groups
GIS-L Frequently Asked Questions (FAQ)
Provides answers to commonly asked questions about GIS,
solutions to common problems, and pointers to resources. You can also consult the GFI list archives
AAG GIS Specialty Group HyperNews Forum
service assessing the usefilness of a distributed,
collaborative WWW research forum on current trends and research interests in
the field of Geographic Information Systems. An attempt to build a comprehensive hypermedia archive of WWW and Usenet materials.
AI-Geostats Web Site
Site for the mailing list devoted to discussing issues related to spatial data analysis and geostatistics.
University Geographic Information System Network
An international contact network for GIS researchers and educators and a meeting place for all who insist on using Macintosh for GIS.
waphgis, a GIS discussion group for Public Health purposes hosted by the
Northwest Center in cooperation with the Washington State Department of Health.
Subscribe to ESRI-L
Listserve for users of all ESRI Products, except ArcView.
ESRI Technical Support
Including searchable FAQ's by software category.
ESRI Discussion Forums
A Web based discussion forum for users to exchange technical documentation and advice concerning ESRI desktop products. Product Discussion Conferences include ARC/INFO, Spatial Database Engine, ArcCAD, ArcView GIS, PC ARC/INFO and DAK, MapObjects, BusinessMAP, and special interest conferences such as GIS in Schools and Libraries and GIS in Higher Education
ESRI Chat Server
Provides real-time discussions with other ESRI software users.
University of Minnesota Gopher Archives of ESRI-L, ARCVIEW-L, and other GIS Listserves
Searchable archives of ESRI-L, ArcView-L and other GIS and Remote Sensing Listserves.
Subscribe to ARCVIEW-L
Discussion Listserve for ArcView users
ArcView-L Mailing List Archives
Includes keyword search option.
ArcView Frequently Asked Questions and Answers
Maintained on ESRI's web site.
ArcView Knowledge Base
Includes searchable summaries of the ArcView-L mailing list.
ARC/INFO Knowledge Base
Includes searchable summaries of the ESRI-L mailing list.
ESRI-L Archive Keyword Search
University of Minnesota's E-mail archives of the ARC/INFO users discussion group. Summaries of responses to user questions are particularly useful. Some other remote sensing and GIS listserv archives can be searched at the same site.
GISnet BBS' MapInfo Support Page
MapInfo demos, FTP site, mailing list, and catalog pf products.
Geographic Resources Analysis Support System (GRASS) Home Page
Pointers to resources for GRASS users and lists of ongoing projects.
Subscribe to AGIS-L
Listserve for Atlas GIS users.
Atlas GIS Discussion Forum
Live on the Web discussion forum for Atlas GIS users.
CIESIN List Archives
Searchable archives of the AGIS-L listserve.
ArcExplorer Discussion Forum Live discussion forum for ArcExplorer users.