- selected sites only-
See also the "Earth Imagery Arranged by Country" section of this guide

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  1. Australia-New Zealand
  2. Canada
  3. Germany
  4. Japan
  5. United Kingdom
  6. United States
  7. World
  8. Digital Elevation Data

Australia-New Zealand

Australian Center for Remote Sensing -- ACRES
ACRES is a business unit of the Australian government's Surveying and Land Information Group (AUSLIG). The ACRES Home page provides automated ordering for maps of Australia, Antarctica and Pacific islands. Topographic, tourist, aerial and satellite image maps are available at the URL: http://www.auslig.gov.au/acres/index.htm.

Australia's National mapping Agency.

Intergovernmental Committee on Surveying and Mapping -- ICSM
ICSM coordinates surveying and mapping operations of state, territory and commonwealth mapping agencies in Australia and New Zealand. The site is located at http://www.anzlic.org.au/icsm/index.html.


British Columbia Archives and Records Service.
This site has a useful feature which allows one to search by the name of the city or region or geographic entity of interest. Images include British Admiralty charts, topographic, and mineral reference maps of British Columbia. The site is located at http://www.bcarchives.gov.bc.ca/index.htm.

Canada Center for Mapping
This site offers Canada's  sophisticated National Atlas Information Service (NAIS).  Geographical data about Canada can be retrieved from this site, including maps regarding land use, demographics, geology and ecology. Users are able to create and download their own custom maps of Canada by accessing http://www-nais.ccm.emr.ca.

National Atlas Information Service
National Atlas Information Service (NAIS) products include base maps, geographical names and thematic maps that reflect the social, economic, environmental and cultural fabric the country. Cartographic and geographical name services (a gazetteer) are also provided via http://ellesmere.ccm.emr.ca.


Institute for Photogrammetry, University of Stuttgart, Germany
This site, http://www.ifp.uni-stuttgart.de, is linked to the Xerox PARC Map viewer. Also at this site are great links to institutes worldwide that deal with photogrammetry, geography, geology, remote sensing, cartography, and GIS.


Geological Survey Institute of Japan -- GSIJ
The GSI home page at http://www.gsi-mc.go.jp includes information on survey administration regarding survey law, geodetic control points, preparation and maintenance of base maps, geographical surveys and thematic mapping, map management, reproduction, and publication, survey technologies, international cooperation in surveying and mapping.

United Kingdom

Ordnance Survey Digimap Project
The UK's Ordnance Survey has combined with six university libraries in multi-year projects to produce a publicly available digital map of the British Isles.  Details on the package are available at:

Tel:      +44 131 651 1239
Email:  digimap@ed.ac.uk
United States

Army Topographic Engineering Center - Survey Engineering and Mapping Center
This site, http://www.tec.army.mil/, offers software and advanced modeling techniques for geospatial data collection and processing.

Association of Research Libraries
This site provides access to the Association of Research Libraries' (ARL) Electronic Atlas. This atlas is being developed to provide maps that depict data gathered from the 1990 census for major metropolitan areas. It is located at http://arl.cni.org/.

Bureau of Land Management Mapping and Metadata Sites
This site has links to USGS and GIS remote sensing information. It also has a listing of the BLM's State Office Public Rooms, which contain a wealth of information and provide maps concerning BLM land use in the United States. The URL for the site is http://www.blm.gov/gis/.

Defense Meteorological Satellite Program (DMSP) "Nighttime Lights of the World" Data
Nighttime lights, fires, flares and similar information collected worldwide in near-infared band.  The program uses the same grid as the USGS Global AVHRR project, and reveals human settlements, energy use and related information.  See http://www.ngdc.noaa.gov/dmsp/dmsp.html

Delaware, University of
This site houses an Image Processing System/GIS used to process satellite, geophysical, seismic and airborne data at http://triton.cms.udel.edu/crs/crs.html

Human Impacts Mapping From USGS-NASA
The EROS/Ames research group(http://geo.arc.nasa.gov/usgs/erosames.html) provides a bridge between basic research and applications for earth science and resource management. This site includes images and in-depth information on current projects in: Temporal Urban Mapping, Human Induced Land Transformations, Land Cover Data, Elevation Framework Data Base and Environmental Data Systems Research. Demonstration projects have taken place in the San Francisco Bay and Washington DC-Baltimore regions.

Library of Congress Center for Geographic Information
This multi-million dollar project is intended to provide online access to tens of thousands of maps. Only first phases currently available, though LOC does provide many online services. It is located at http://www.loc.gov.

Map Maker
Map Maker is a free, relatively simple Geographic Information System (GIS) designed to allow non-expert users to create and manipulate maps. Map Maker is suited to monitoring eco-systems, planning urban infrastructure, monitoring primary health care statistics, and illustrating any number of geographically based research topics. Map Maker offers free GIS software for Windows. The software, manual and demo files can be downloaded from the address http://www.ibmpcug.co.uk/~MapMaker. It is also available via anonymous FTP at ftp.win-uk.net. Login to the site as "anonymous" and use your email ID as your password. One you are on line, change directories by typing CD, then  /pub/users/MapMaker/mm.zip directory.

Multi-Scale Maps
Available on-line at http://www.c3.lanl.gov/"cjhamil/Browse/main.html are multi-scale maps of Washington, D.C.; digital elevation models of western United States; and San Francisco Bay Area digital orthophoto imagery. Sample high resolution images of 1 meter per pixel resolution are available. This address also includes access to some National Center for Supercomputing Applications software for scientific modeling, analysis and visualization. NCSA's Digital Gallery contains approximately 250 megabytes of images and animation sequences. Software and documentation can be downloaded by anonymous FTP at ftp.ncsa.uiuc.edu.

Open GIS Consortium, Inc.
Open GIS is defined as transparent access to heterogeneous geodata and geoprocessing resources in a networkedenvironment. The goal of the Open GIS Consortium is to provide a comprehensive suite of open interface specifications that enable developers to write software that provide these capabilities.

Perry-Castaneda Library Map Collection at The University of Texas at Austin.
The Perry-Castaneda Library Map Collection (PCL) holds more than 200,000 publicly accessible paper maps covering every area of the world. Most items in the collection have bibliographic records available in the UT Libraries On-line Catalog. This site includes on-line maps of current interest such as maps of Bosnia, Sudan and the Gaza and West Bank. Also on-line are general interest and historical maps from around the world. This comprehensive collection is located http://www.lib.utexas.edu/Libs/PCL/Map_collection/Map_collection.html.

Public Health GIS News and Information Newsletter
The US Center for Disease Control and Prevention publishes this bi-monthly newsletter on all aspects of GIS use in public health and epidemiological applications.  It is available at http://atsdr1.atsdr.cdc.gov:8080/hsph71-2.html#gis or by contacting its editor at cmc2@cdc.gov  or 1-301-436-7904 x146.
CDC's Agency for Toxic Substances and Diseases Registry maintains and unusually complete home page on scores of public health and and toxic research subjects; see http://atsdr1.atsdr.cdc.gov:8080/atsdrhome.html.

Texas A&M GIS Department
Access to A&M faculty and GIS, GPS and cartography resources online at http://www.sci.tamucc.edu/gis.

Tiger Mapping Service
Tiger is Census’ incredible coast to coast digital map data base of demographic, economic, and related census information for the Unites States. Its URL is http://tiger.census.gov. The ‘97 Tiger/Line data may also be obtained  at the site.

U.S. Geological Survey Map collection
The National Mapping Program of the USGS site at http://www.usgs.gov/network/science/earth/index.html, provides authoritative cartographic data for the United States. The USGS EROS Data Center in Sioux Falls, SD offers on-line browsing and automated ordering for about 350,000 maps concerning almost any aspect of geographic and earth science studies in the United States, as well as for aerial photography and satellite imagery of the United States. The EROS Data Center has on-line 1:100,000 and 1:2,000,000 Digital Line Graph, land use/land cover, and 1:250,000 Digital Elevation Models of the U.S.A.


ESRI's GIS Jump Station
ESRI's GIS Jump Station is composed of hundreds of useful links to other GIS-related sites around the world.  ESRI creates the well know series of ARC/INFO, ARC/VIEW and related GIS software.

GIS User's Guide to Internet Tools
Through the use of case studies, this guide introduces novice internet users to the main methods of retrieving GIS resources available free on the Internet. The site is located at http://jupiter.qub.ac.uk/GIS/GIS.htm.

GIS and Mapping FAQ
To obtain information send an e-mail message to: mail-server@rftm.mit.edu In the body of the message include the following information : send usenet/news.answers/geology-faq/geosci-resources/part2. This site is a useful source for information about mapping, GIS techniques, and mapping software. The site lists several addresses for mapping software that can be downloaded by anonymous FTP.

GSIJ Core Datasets and Programs
This Japanese GSI project provides relatively detailed summaries of important mapping, topographic and Digital Elevation Model (DEM) datasets worldwide.  The directory appears strongest on United Nations and United States data.  See http://www1.gsi-mc.go.jp/

International GPS Service for Geodynamics
This site is useful for researchers who use the global positioning system (GPS) for studies in geodynamics. IGS archives and distributes GPS observation data and GPS satellite tracking station clock information. The project maintains a network of about 50 globally distributed permanent tracking stations. It also has Data Centers, Analysis Centers and a Central Bureau for information distribution. The bureau maintains Hot Links with allied organizations in Europe, Canada and the US. The URL for the site is http://IGSCB.JPL.NASA.GOV.

Public Domain Cartographic Projection Software FAQ
This FTP site is located at FTP: charon.er.usgs.gov. Login to the site as "anonymous" and use your email ID as your password. Once you are on line, change directories by typing CD, then: /pub/PD.projections.FAQ. The FAQ includes pointers to sites providing free mapping and GIS software.

Xerox PARC Map Viewer
This site includes the Xerox PARC Map Viewer, which is an HTTP server that accepts requests for world or USA maps, then returns an HTML document including an image of the requested map. Each map image is created on demand from a geographic database. Map areas can be selected through a clickable map of the world located at http://mapweb.parc.xerox.com/map.

Xerox also provides an FTP site that users describe as a gold mine for maps, datasets, and for all kinds of public domain geospatial data at ftp:// spectrum.xerox.com. Login to the site as "anonymous" and use your email ID as your password. One you are on line, change directories by typing CD, then change to /pub/map directory.

Harvard Design Mapping
This site, http://www.hdm.com, is a relatively comprehensive listing of worldwide GIS net sites including links to many university home pages. HDM provides support for advanced technologies such as pen-based field computers, remote sensing, and the Global Positioning System (GPS).

Digital Elevation Data

Digital Elevation Catalog
Bruce Gittings' DEC remains the most complete single source of digital topographic elevation and related information on the web.  The catalog is located at http://www.geo.ed.uk/home/ded.html, or can be obtained by sending email to: geoinfo@geo.ed.ac.uk with the command message SEND DEM.  The catalog is greater than 200 kb in size.

NIMA Digital Chart of the World
This is also known as the Vector Smart Map (Vmap) Level 0.  The digital map provides 1:1,000,000 scale vector information worldwide with thematic layers for road and rail networks, river systems, utilities (electric and gas pipelines), international boundaries, etc.  Elevation data is at 1000 foot intervals with some 500 and 250 supplements.  Available on four CD-ROMs that traditionally have retailed for about $200 USD from USGS Open FIle Section, Box 25286, Denver, CO  80255.

NIMA Digital Terrain Elevation Data Level 1 (DTED1)
Digital topographic data compiled at approximately 100 meter post spacing (2 arc seconds).  DTED Level 1 is described as "basic medium resolution elevation data for all (U.S.) military activities and systems" that require land form data.  DTED1 data outside the United States is classified; 2 arc second data is nevertheless widely available for the U.S. and most industrialized nations from a variety of legitimate sources.  DTED Level 1 is restricted to U.S. Department of Defense and military contractors; but appeals for civilian access can be made to:
NIA HQ Releases Officer
Attn:  ACT, MSA-13
8613 Lee Highway
Fairfax, Virginia, 22031
For background information see: http://www.mima.mil/publications/guides/dtf/dted1.html.

NIMA Digital Terrain Elevation Data Specifications (DTED0, DTED1, DTED2)
DTEDs are the military cousins of civilian Digital Elevation Models (DEMs).  The data specifications can be found at:
specs/printed/DTED/DTED_1-2.html.  Source code and software for reading DTEDs in a GIS can be found at

NOAA Global Land One-km Base Elevation (GLOBE) Project
NOAA's gridded 1 km activity DEMs are noteworthy for their quality control and uniformity of data presentation.  Located at http://www.ngdc.noaa.gov/seg/topo or send a blank email message to emglobe@ngdc.noaa.govto receive electronic news releases.  The GLOBE site includes links to many U.S. and international DEM sources.

USGS Digital Elevation Model Data Formats (DEMs)
DEMs are the civilian cousins of NIMAs higher accuracy DTEDs.  DEM data information can be found at http://mapping.usgs.gov/www/html/2nmpgds.html.

USGS Global 30 Arc-second Elevation Data (GTOPO30)
This USGS/United Nations joint effort provides 1-km elevation data, slope and watershed raster data worldwide.  The data resolution is comparable to 1-km AVHRR satellite imagery.  A related project provides land cover data at 1-km resolution; see http://edcwww.cr.usgs.gov/ landDAAc/glcc/glcc_na.html.

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