----------------------------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.