Raines, Gary L., Johnson, B. R., Frost, Thomas P. and 
     Zientek, Michael L., 1996, Digital maps of 
     compositionally classified lithologies derived from 
     1:500,000-scale geologic maps for the Pacific 
     Northwest:  a contribution to the Interior Columbia 
     Basin Ecosystem Management Project:  U.S. Geological 
     Survey Open-File Report 95-685, 29 p.

This report describes the contents of a digital data set 
(approximately 269 MB) which consists of Arc/Info Export 
format files and associated macro programs.  Page-sized,  
color versions of the digital maps are included in the 
report.  The data set also includes macro programs and 
complete plot files for creating paper copies of the maps 
at a scale of 1:2,000,000.  The data set is available on 
the World Wide Web at 

http://pubs.usgs.gov/of/1995/of95-685/.  

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 Arc/Info Export format files is required for 
access to the digital files.  All plot files are stored in 
HPGL2 format.  The digital data set files are in UNIX ASCII 
format.