00readme.txt -- UNIX ASCII file that describes the spatial digital database for U.S. Geological Survey Open-File Report 02-365, 10/29/2002, DH; 12/2/02 and 2/6/03, pd.

Dickinson, W.R., Hirschberg, D.M., Pitts, G.S., and Bolm, K.S., 2002, Spatial digital database of the geologic map of Catalina Core Complex and San Pedro Trough, Pima, Pinal, Gila, Graham, and Cochise counties, Arizona:  U.S. Geological Survey Open-File Report 02-365, version 1.0, 25 p., 1 digital sheet, scale 1:125,000. Rec'd Director's approval September 20, 2002.  

This report describes the contents of a spatial digital database which consists of ArcInfo exchange-format files and associated files. A page-sized, color version of the digital geologic map is included in the report. These data are available on the World Wide Web at:
           http://geopubs.wr.usgs.gov/open-file/of02-365/

An Adobe Acrobat PDF file for printing a paper copy of the map at a scale of 1:125,000 is also available on the web, in addition to a Postscript version of the map.  These data are also available via anonymous FTP from: geopubs.wr.usgs.gov,
in the directory pub/open-file/of02-365.

  Requirements: A networked computer system is required to copy the files from the host computer across the Internet. A geographic information system (GIS) capable of importing ArcInfo exchange-format files is required for access to the digital files. The map file are stored in Adobe portable document format (ccc-map.pdf) and in encapsulated PostScript format (ccc-map.eps).
 
  The digital spatial database for the geologic map of Catalina Core Complex and San Pedro Trough is available as one UNIX compressed TAR file, ccc125k.tar.Z*, which includes the report text (ccc125k.pdf) in an Adobe portable document file format.

  To download the spatial digital database data files, create a new workspace on your system and copy the ccc125k.tar.Z* file to your new workspace. Use the command 'uncompress -v ccc125k.tar.Z' to uncompress the file. Then use the command 'tar -xvf ccc125k.tar' to extract the files from the TAR file. And finally, to import the ArcInfo exchange-format files (*e00) into your workspace, open ArcInfo on your workstation and enter '&run import.aml' at the Arc prompt.

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Explanation of digital data files:

Your working directory should contain the following files:
  ccc125k.pdf - Open-File Report text in Adobe portable document file (PDF) format. 
  import.aml - ArcInfo program to import ArcInfo interchange-format files.
  0readme.txt - DOS ASCII file that describes the spatial digital database
  00readme.txt - UNIX ASCII file that describes the spatial digital database

Primary ArcInfo exchange-format files (*.e00) and metadata (*.met) include:
  ccc125k.e00 - principal line and polygon geologic map spatial database (contacts, structures, and map units)
  cccpnt.e00 - point spatial database for structural map symbols
  ccc125k.met - FGDC-compliant metadata file

Geologic map plot files derived from the spatial digital database:
  ccc-map.eps - postscript level 2 version
  ccc-map.pdf - Adobe portable document format
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*If you do not wish to download the complete data package (21 MB), you may download just the spatial databases (ccc125k_db.tar.Z, 1.3 MB).

contents of ccc125k_db.tar.Z file:
ccc125k.e00 - principal line and polygon geologic map spatial database (contacts, structures, and map units)
cccpnt.e00 - point spatial database for structural map symbols
ccc125k.met - FGDC-compliant metadata file
import.aml -  ArcInfo program to import ArcInfo interchange-format files
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