Version history for:


  Billingsley, George H., Block, Debra L., and Dyer, 
       Helen C., 2006, Geologic map of the Peach Springs 
       30' x 60' quadrangle, Mohave and Coconino Counties, 
       northwestern Arizona:  U.S. Geological Survey 
       Scientific Investigations Map 2900 [available on the 
       World Wide Web at 
       http://pubs.usgs.gov/sim/2006/2900/ ].



  November 14, 2006

  Added digital data, metadata, and readme file


  October 27, 2006

  Initial release online at
  http://pubs.usgs.gov/sim/2006/2900/