Web Directory

» Alaska State Geo-spatial Data Clearinghouse
   Alaska state and local government geospatial maps and data.
   http://www.asgdc.state.ak.us/

» Arizona Geographic Information Council
   Provides map services, FGDC compliant metadata, and geospatial data downloads for the state of Arizona.
   http://agic.az.gov/portal/

» Cal-Atlas
   Geospatial clearinghouse for the state of California.
   http://atlas.ca.gov/

» Colorado Geographic Information Portal
   Provides spatial data and information regarding GIS activities and developments in the state of Colorado.
   http://coloradogis.nsm.du.edu/Portal/

» Colorado Geological Survey: GIS Data
   State and local government oriented data including engineering geology and geologic hazards, geologic mapping, and GIS and technical services.
   http://geosurvey.state.co.us/Default.aspx?tabid=123

» Community Mapping Network
   Created to share a wealth of natural resource information and maps with communities in British Columbia, Canada. Allows users to add data.
   http://www.cmnbc.ca/

» Delaware DataMIL
   Serves metadata, data downloads and web mapping services for the state of Delaware.
   http://datamil.delaware.gov/

» Florida Geographic Data Library
   Spatial (GIS) data for the state of Florida.
   http://www.fgdl.org/

» Hawaii Statewide GIS Program
   Free downloadable GIS spatial data, metadata, and maps.
   http://www.hawaii.gov/dbedt/gis/

» Illinois Natural Resources Geospatial Data Clearinghouse
   Provides access to Illinois GIS data sets and metadata documentation.
   http://www.isgs.uiuc.edu/nsdihome/

» Indiana Spatial Data Portal
   Provides access to more than 17 terabytes of Indiana geospatial data.
   http://www.indiana.edu/~gisdata/

» Infoshare: Community Data on New York City
   Profile and compare neighborhoods, and produce original tables.
   http://www.infoshare.org/

» Iowa Geospatial Data Clearinghouse
   Geospatial data for the state of Iowa.
   http://www.iowagis.org/

» Kansas Geospatial Community
   State of Kansas Data access and support center (DASC). DASC catalogues, archives, and distributes databases with FGDC compliant metadata and direct FTP access.
   http://www.kansasgis.org/

» Kentucky Geological Survey's Geospatial Data Library
   Electronic maps and GIS data for the state of Kentucky.
   http://www.uky.edu/KGS/gis/

» Louisiana Statewide GIS
   Contains GIS and mapping data on the state of Louisiana.
   http://atlas.lsu.edu/

» Maine GIS Data Catalog
   Provides access to the digital geographic data produced by the GIS Executive Council and Maine GeoLibrary Board.
   http://megis.maine.gov/catalog/

» MassGIS
   GIS data layers for the state of Massachusetts.
   http://www.mass.gov/mgis/

» MiGDL
   Center for Geographic Information provides GIS data and maps for the state of Michigan.
   http://www.mcgi.state.mi.us/mgdl/

» Minnesota Geographic Data Clearinghouse
   Source for geographic data and maps for the state of Minnesota.
   http://www.mngeo.state.mn.us/chouse/

» Mississippi Automated Resource Information System
   GIS data clearinghouse for the state of Mississippi.
   http://www.maris.state.ms.us

» Mississippi Geospatial Clearinghouse
   Provides access to the GIS data resources of Mississippi.
   http://www.gis.ms.gov

» Missouri Spatial Data Information Service
   Provides public access to GIS and census data about the state of Missouri.
   http://msdis.missouri.edu/

» Montana Geographic Information Clearinghouse
   Comprehensive collection of geospatial data for the state of Montana.
   http://nris.mt.gov/gis/

» NC OneMap
   GIS data for the state of North Carolina.
   http://www.nconemap.com/

» NH GRANIT
   New Hampshire's statewide GIS data clearinghouse.
   http://www.granit.unh.edu/

» NOS Data Explorer
   Offers interactive mapping tools that allow users to locate NOS products in any area in the United States and its territories through a metadata catalog.
   http://www.noaa.gov/

» National Historic Geographic Information System
   Historical U.S. census data and boundary files from 1790 to 2000.
   http://www.nhgis.org/

» Nebraska GIS Data Bank
   GIS data layers for the state of Nebraska.
   http://www.dnr.state.ne.us/databank/spat.html

» New Jersey GIS Department
   GIS data and mapping services for the state of New Jersey.
   http://www.nj.gov/dep/gis/

» New Mexico RGIS Clearinghouse
   Spatial data, aerial imagery, and mapping services for the state of New Mexico.
   http://rgisbeta.unm.edu/

» New York State GIS Clearinghouse
   Operated by the New York State Office for Technology. Provides access to the New York State GIS Metadata and Data Repository.
   http://www.nysgis.state.ny.us/

» North Dakota GIS
   Portal to North Dakota geospatial data and information.
   http://www.nd.gov/gis/

» OGRIP
   Provides access to Ohio GIS data.
   http://ogrip.oit.ohio.gov/

» Oklahoma Center for Geospatial Information
   Geospatial data and information for the state of Oklahoma provided by Oklahoma State University.
   http://www.ocgi.okstate.edu/

» Oregon Geospatial Enterprise Office
   Coordinates, develops and maintains geographic information for the state of Oregon.
   http://gis.oregon.gov/

» PASDA
   Official public access geospatial information clearinghouse for the state of Pennsylvania.
   http://www.pasda.psu.edu/

» Rainwater Basin GIS Data Site
   Provides free GIS data sets pertaining to the Rainwater Basin wetlands in Nebraska.
   http://www.calmit.unl.edu/rwb

» Rhode Island GIS
   Data clearinghouse for the state of Rhode Island.
   http://www.edc.uri.edu/rigis/

» South Carolina GIS
   Geospatial data and information on the South Carolina Geographic Information Council.
   http://www.gis.sc.gov

» South Dakota GIS
   GIS data and maps for the state of South Dakota.
   http://arcgis.sd.gov/server/sdgis/

» Tennessee Spatial Data Server
   GIS data for the state of Tennessee. DOQQs, DRGs, DEMs, boundaries, wetlands, and geology.
   http://www.tngis.org

» Texas General Land Office GIS
   Hosts a variety of GIS data for the state of Texas.
   http://www.glo.state.tx.us/maps.html

» Texas Natural Resources Information System
   Clearinghouse for natural resources and GIS data. Online holdings include DOQs, DEMs and many vector datasets.
   http://www.tnris.state.tx.us/

» United States National Atlas
   Map layers available to the public.
   http://www.nationalatlas.gov/atlasftp.html

» Utah GIS Portal
   Catalogs free GIS datasets, data standards, and online digital maps for the state of Utah.
   http://agrc.its.state.ut.us/

» Vermont Center for Geographic Information
   Stores and distributes geospatial data for the state of Vermont.
   http://www.vcgi.org/

» Virginia Information Technologies Agency
   Provides GIS data for the state of Virginia.
   http://gisdata.virginia.gov

» West Virginia GIS Technical Center
   Provides GIS data and services for the state of West Virginia.
   http://wvgis.wvu.edu/