Geographic Information Systems (GIS) Services:
Spatial Data Online

GIS Librarian Favorites

Federal Data

State and Local Data

Other Online Guides to Spatial Data

GIS Services (at Davis Reference)

Amanda C. Henley
GIS Librarian
Davis Library

Web Sites for Digital GIS Data. Stanford University

Archive of Census Related Products. SEDAC/CIESIN (Center for International Earth Science Network). "The ftp archive is a collection of georeferenced data files containing census information that spans the United States. It is comprised of boundary, standard extract, zip equivalency extract, enhanced migration, street intersection,and census block statistics files. Documentation describing the data and filename convention has been included, as well as programs to facilitate format conversion and platform portability. These data are value-added products derived from original census files compiled and distributed by the U.S. Bureau of the Census."

GeoGratis "GeoGratis distributes a wide variety of geospatial data, data based on location, for geographic areas across Canada. The data is available free of charge, subject to copyright restrictions and disclaimer."

Spatial Data on the Web Alexandria Digital Library, University of California, Santa Barbara.

Geospatial and Attribute Links from the University of Arkansas Libraries Maps and Geographic Information Systems