The National Geodetic Survey provides three Windows 
   programs for accessing NGS Digital Datasheet files 
   Datasheet files are hereafter referred to as DSDATA files.

   All 3 programs were developed for the 
   Windows 2000/98/95/NT platform. 

   Program 'DSWIN' is used to find, extract, view, 
   and print NGS Digital Datasheets.

   Program 'DSFILES' is used to join and split 
   NGS Digital Datasheets files.

   Program 'DSUPDATE' is used to merge/replace 
   a newer DSDATA file in to an older DSDATA file
   so that your file can be kept up-to-date.
  

   The programs work on separate Datasheet files or in
   conjunction with your NGS Datasheet CD-ROM.

   NOTE - NGS no longer sells datasheets on CD, but  
          DSWIN and DSFILES still allow for reading
          a CD if you have one.

   TO EMULATE a CD on your Hard Drive...
     1. Create directory called Data\
        with subdirectories for one or more states
        i.e. \Data\MD
             \Data\DE
             \Data\WV
                etc.
     2. Go to www.ngs.noaa.gov/cgi-bin/ds_archive.prl
        and download the Counties you need into
        the appropriate State directory.
        Also download the 'county.'  file
        to the appropriate State directory.
        The 'count.' file is available via clicking
        'Get Misc Files' on the web page.
        NOTE - This file must be named 'county.md'
        or county.<whatever_state>

        Your directory structure for MD should look like...
             C:\Data\MD\
                        md001.dat
                        md003.dat
                        county.md
        
     3. Run DSWIN or DSFILES and click 'CD-ROM'
        and click 'C' for the Drive letter.

     4. The program should list the States found
        under /Data.  When you click on a state, it should
        list the Counties found in /Data/MD/county.md
        (or whatever State you choose).


   Programs DSWIN and DSFILES both have the capability 
   for converting your datasheets to a single records per 
   station delimited record format. (a.k.a DSSELECT format).
   (Click HELP->GIS/DSSELECT)

   WHO TO CALL:
   ____________

   Problem with the program or
   Missing or incorrect data, Call: 
        National Geodetic Survey Information Branch
        (301)713-3242
        info_center@ngs.noaa.gov

   ALSO:
   _____
   Datasheets are available Free from the
   National Geodetic Survey HomePage,
      http://www.ngs.noaa.gov