Jump to... State & Local ~ Commercial ~ US Gov't ~ Canadian Gov't ~ Academic... geospatial data sources.

State & Local Data Sources ~ back to top

Maine Office of GIS. http://apollo.ogis.state.me.us/

Massachusetts GIS. In addition to comprehensive data for the State of Massachusetts, this site includes several data sets which are useful for other New England GIS users, including images of NOAA nautical charts and political boundary layers for all New England towns and the Atlantic Provinces. http://www.state.ma.us/mgis/massgis.htm

Vermont Center for Geographic Information. http://www.vcgi.org/

New Hampshire GRANIT. The New Hampshire Geographically Referenced Analysis and Information Transfer System (NH GRANIT) is a cooperative project to create, maintain, and make available a statewide geographic data base serving the information needs of state, regional, and local decision-makers. http://www.granit.sr.unh.edu/cgi-bin/load_file?PATH=//home.html

College of the Atlantic GIS Laboratory offers free data and software on CD to local citizens and teachers. Contact us to request a CD.

Eastern Maine Development Corporation offers economic development and landuse planning data and assistance to Eastern Maine businesses and municipalities. http://www.emdc.org/

Commercial Data Sources ~ back to top

GIS Data Depot. Broad selection of GIS data for free or small fee. http://www.gisdatadepot.com/

Geography Network. http://www.geographynetwork.com/

Census 2000 Data and Tiger Line Files in ESRI-compatible formats, as well as census-related tools. http://www.censuswatch.com/data/download/census2000_tigerline/index.html

ESRI links to Free or Low-Cost utilities, data, and other resources. http://www.esri.com/company/free.html

U.S. Government Data Sources ~ back to top

U.S. National Atlas. http://www.nationalatlas.gov/pros.html Downloadable map layers for the entire U.S. in these categories: Agriculture, Environment, People, Biology, Geology, Transportation, Boundaries, History, Water, Climate, Map Reference.

   U.S. Geological Survey (USGS)
National Mapping Information. http://mapping.usgs.gov/

National Elevation Dataset. TIFF or Grid Data. http://www.esri.com/data/download/usgs_ned/index.html

   U.S. Census
TIGER files (Topologically Integrated Geographic Encoding and Referencing) http://www.census.gov/geo/www/tiger/index.html

   U.S. National Oceanic & Atmospheric Administration (NOAA)
Office of Coast Survey, use the index pull-down at left to choose maritime boundaries, vector shorelines, etc. http://nauticalcharts.noaa.gov/csdl/

National Ocean Sevice bathymetry data for selected harbors in the U.S. http://oceanservice.noaa.gov/mapfinder/products/bathy/supp_bathyfilesizes.html

National Environmental Satellite Data and Information Service. http://www.nesdis.noaa.gov/

Space Physics Interactive Data Resource. http://spidr.ngdc.noaa.gov/spidr/index.html

Defense Meteorological Satellite Program offers maps of land cover and lights on Earth at night, including fires, city lights, etc. http://dmsp.ngdc.noaa.gov/dmsp.html

   National Aeronautics & Space Administration (NASA)
MODIS Sattelite Data Access. http://daac.gsfc.nasa.gov/MODIS/data_access.shtml or the active archive center http://daac.gsfc.nasa.gov/data/dataset/index.html

Earth Observatory site for free access to satellite imagery. http://earthobservatory.nasa.gov/

Links to Satellite Data Sets. http://eosdata.gsfc.nasa.gov/data/dataset/index.html

Canadian Government Data Source ~ back to top

Canada GeoGratis. http://geogratis.cgdi.gc.ca/

Academic Data Sources ~ back to top

Stanford University Library GIS Data Bookmarks. A comprehensive list of links to GIS data worldwide. http://www-sul.stanford.edu/depts/gis/bookmark.htm

GIS Sources for the Northeastern United States. This site at Harvard's Institute for Cultural Landscape Studies is not being updated, but still has lots of great links for data and other resources for the Northeast region. If you want to find more resources, use the link to their searchable database. http://www.icls.harvard.edu/sources/gis2.html

Guide to Mostly On-Line and Mostly Free U.S. Geospatial and Attribute Data. This site may be overwhelming at first, but it has lots of data sources that you might not be able to find otherwise. Perhaps most useful are the links to lots of different sources of ATTRIBUTE DATA! Prepared by Stephan Pollard at the University of Arkansas, this site is often updated. http://libinfo.uark.edu/GIS/us.asp

Society for Marine Mammalogy Links to Oceanographic Datasets. http://www.marinemammalogy.org/data.htm

University of Colorado, Boulder Links to Geospatial Data Sets. http://www.colorado.edu/geography/virtdept/resources/data/data.htm

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GIS Lab Contact:
Gordon Longsworth, glongsworth@coa.edu, 207-288-2944, extension 277