Revision History for USGS 
  Scientific Investigations Map 3109

  David R. Bedford, David M. Miller, and Geoffrey A. Phelps

  Surficial Geologic Map of the Amboy 30' x 60' Quadrangle, 
  San Bernardino County, California

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  Edited colors on figure 5
  August 9, 2010

  Posted online at http://pubs.usgs.gov/sim/3109/
  July 12, 2010

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