Version history for


  Raines, Gary L., 2006, Thematic Mapper-derived mineral 
distribution maps of Idaho, Nevada, and western Montana:  
U.S. Geological Survey Data Series 185 [available on the 
World Wide Web at http://pubs.usgs.gov/ds/2006/185/ ].


  Version 1.0

  April 26, 2007

  Made minor improvements to data


  October 2, 2006

  Initial release online at
  http://pubs.usgs.gov/ds/2006/185/