0readme.txt DOS ASCII file that describes the digital data for U.S. Geological
Survey Open-File Report 03-67 (revised 1/5/2005, pd)

Walker, G.W., MacLeod, N.S., Miller, R.J., Raines, G.L., Connors, K.A., 2003, 
Spatial digital database for the geologic map of Oregon: U.S. Geological Survey 
Open-File Report 03-67, ver. 2.0, 22 p.  Received Director's approval Feb. 2003.  
URL = http://geopubs.wr.usgs.gov/open-file/of03-67/
  

This report describes the contents of a digital data set which consists of 
ArcInfo exchange-format files and associated files.  A raster image of the 
original printed map sheet is included in the report.  The data set also 
includes complete plot files for creating a paper copy of the map at a scale 
of 1:500000.  The data set is available on the World Wide Web at 
http://geopubs.wr.usgs.gov/open-file/of03-67/.  It is also available via 
anonymous FTP from: geopubs.wr.usgs.gov, in the directory: 
pub/open-file/of03-67.

Requirements:  A networked computer system is required to copy the data set 
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 digital data files are in UNIX ASCII format.

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Explanation of digital data files:

The GIS database for the Geology of Oregon is available as one UNIX-compressed 
TAR file, of03-67.tar.Z, which includes the report text (of03-67.pdf) in an 
Adobe Acrobat Portable Document File (PDF) format.

To download the GIS data files, create a new workspace in a UNIX working 
environment and copy the of03-67.tar.Z file to your new workspace. Use the 
command 'uncompress -v of03-67.tar.Z' to uncompress the file. Then use the 
command 'tar -xvf of03-67.tar' to extract the files from the TAR file. 

Or copy the of03-67.tar.Z file to an empty Windows subdirectory. Use an 
unzip software (such as WinZip) to uncompress and extract files from the 
of03-67.tar.Z file.

And finally, to import the ArcInfo exchange-format files (*e00) into your 
workspace, open ArcInfo on your workstation and enter '&run importfile' at 
the Arc prompt or import the file using ArcToolbox.

Your working directory should contain the following files:
0readme.txt - this file in DOS ASCII format
importfile.aml -  ArcInfo program to import ArcInfo interchange-format files 
                  into the user's workspace.
of03-67.pdf - Open-File Report text in Adobe Acrobat Portable Document File 
             (PDF) format. 

Primary ArcInfo exchange-format files (*.e00) and metadata (*.met) include:

orgeo.e00 - principal line and polygon geologic map coverage
orgeo.met - metadata file


JPEG image (*.jpg/.jgw/.aux) and metadata (*.met) files for the Walker and 
MacLeod (1991) map sheets:

wm1991or_map.jpg/.jgw/.aux - georeferenced raster image of geologic map
wm1991or_units.jpg/.aux - image of the original correlation of map units
wm1991or_map.met - metadata for georeferenced raster 

