Revision History for USGS 
  Scientific Investigations Map 2940

  Ralph A. Haugerud and Rowland W. Tabor

  Geologic Map of the North Cascade Range, Washington

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  Added an note that it is now available in print
  October 15, 2010

  Added GIS data and metadata; made minor improvements
  to the photos collection
  May 18-25, 2010

  Posted online at http://pubs.usgs.gov/sim/2940/
  September 29, 2009

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