Suggested citation and version history for


  Graymer, R.W., Brabb, E.E., Jones, D.L., Barnes, J., 
       Nicholson, R.S., and Stamski, R.E., 2007, Geologic 
       map and map database of eastern Sonoma and western 
       Napa Counties, California:  U.S. Geological Survey 
       Scientific Investigations Map 2956 
       [http://pubs.usgs.gov/sim/2007/2956/].


  Version 1.0, April 3, 2007

  Initial release online at
  http://pubs.usgs.gov/sim/2007/2956/