----------------------------Original message---------------------------- We are pleased to announce the availability of geographic boundary files for the U.S. Public Use Micro Sample (PUMS) data files. The geographic boundary files are available for the 5% and 1% Public Use Micro Sample Areas (PUMA). The boundary files are the latest addition to the Archive of Census Related Products which can be accessed publicly via FTP or any browser (other recent additions include the 1990 voting district (VTD) boundaries and the 1980 census blocks). The PUMA boundaries were generated based on equivalency files generated by "Geocorr", the geographic correspondence engine. A national census tract to PUMA geography correspondence file was used in merging the former into the new PUMA geographies. The results are available in 3 standard formats for easy use within desktop geographic information systems. We are anticipating adding to our Archive demographic data files which match the PUMA and VTD boundary currently available. Consult the file "whatsnew.txt" on the Archive for the latest information. Access Archive of Census Related Products ftp ftp.ciesin.org login: anonymous password: <email address> cd /pub/census get archive.ann <-- description of archive cd usa cd pums get readpuma.txt <-- detailed description or via browser at ftp://ftp.ciesin.org/pub/census Geocorr (and mirrors) http://plue.sedac.ciesin.org/plue/geocorr http://www.oseda.missouri.edu/plue/geocorr http://www.census.gov/plue/geocorr Ulysses http://plue.sedac.ciesin.org/plue/ulysses telnet ulysses.ciesin.org login: ulysses This service is provided by the Socioeconomic Data and Applications Center (SEDAC). The Consortium for International Earth Science Information Network (CIESIN) has been designated by the National Aeronautics and Space Administration (NASA) to create and operate SEDAC, one of the data centers in the Earth Observing System Data and Information System (EOSDIS). SEDAC's mission is to develop and deliver information products and services that integrate social and natural science data in ways useful for decision making. For additional information about MABLE / Geocorr, SEDAC, or CIESIN, contact User Services at [log in to unmask] or call (517)797-2727 between 8 a.m. and 5 p.m. eastern time, Monday through Friday.