U.S. GEOLOGICAL SURVEY
                WATER-RESOURCES INVESTIGATIONS REPORT 93-4076

                         HYDRO-CLIMATIC DATA NETWORK
                                    (HCDN)
                        STREAMFLOW DATA SET, 1874-1988

                   [This is the \DOCFILES\1ST_READ.ME file]


                     Structure of the DOCFILES directory

         This directory (\DOCFILES) contains the ASCII documentation
      files for the HCDN CD-ROM.  These files are:

         ACKNOWLE.DOC - This file provides acknowledgments of the
            producers of this CD-ROM disc as well as of the sources
            of the data contained on this disc.

         CONTACTS.DOC - This file provides a list of contacts for
            additional information on this CD-ROM, the U.S.
            Geological Survey's CD-ROM Support Center, and the data
            contained on this disc.

         COPYFLOW.DOC - This file describes the use of the COPYFLOW
            software (usable only on DOS PCs) to copy ASCII and
            binary streamflow data from this CD-ROM to a floppy or
            hard disk file.

         CUSTOMIZ.DOC - This file provides technical information on
            customizing the files which control the operation of the
            GSMENU and GSSEARCH software.

         DATAINFO.DOC - This file provides technical information on
            the data contained on the disc. Individual data elements
            are defined and coded values are explained.

         DISCLAIM.DOC - This file contains the U.S. Government's
            disclaimer for this CD-ROM.

         GSSEARCH.DOC - This file contains a step-by-step explanation
            of the use of the GSSEARCH software (usable only on DOS
            PCs).  Once this brief tutorial has been completed, the
            user should have a good working knowledge of how to
            select, display, and output data from this CD-ROM.

         HCDR.DOC - This file explains the functioning of the HCDR
            software (usable only on DOS PCs), directs the user to an
            interactive tutorial, and gives information on
            customizing the software.

         NON_DOS.DOC - This file describes the basic steps in
            searching for suitable HCDN stations and finding the
            streamflow data on non-DOS computer systems.

         OVERVIEW.DOC - This file provides a brief overview of the
            data and software contained on this CD-ROM, including the
            type and extent of data coverage.

         REFERENC.DOC - This file cites the references used in the
            production of this CD-ROM.

         REGISTER.DOC - This file contains a registration form by
            which a user can elect to receive announcements of new
            CD-ROM releases and of updates to previous releases. This
            form also provides a vehicle for suggestions and feedback
            to the USGS on the current disc.

         TITLE.DOC - This file shows the title page and the authors
            of this CD-ROM.