Version history for



  Dartnell, Peter, Barnes, Peter, Gardner, James V., and 
       Lee, Kristen 2004. Visualizing the geology of lake 
       trout spawning sites; northern Lake Michigan:  U.S. 
       Geological Survey Scientific Investigations Map 
       2930, 2 sheets, [available on the World Wide Web at 
       http://pubs.usgs.gov/sim/2004/2930/ ].

  June 30, 2006

  Renumbered and moved to
  http://pubs.usgs.gov/sim/2004/2930/


  September 30, 2004

  Initial release online as USGS Geologic Investigations 
  Series I-2800 (a number that was in conflict with 
  Tilling's "This Dynamic Earth" publication) at
  http://pubs.usgs.gov/imap/i2800/