Suggested citation and version history for


  Leonard, Gregory J., and Tanaka, Kenneth L., 2001, 
       Geologic map of the Hellas region of Mars:  U.S. 
       Geological Survey Geologic Investigations Series 
       I-2694, pamphlet 10 p., 1 plate, scale 1:4,336,000 
       [http://pubs.usgs.gov/imap/i2694/].


  Version 1.0

  June 22, 2007
  Migrated to http://pubs.usgs.gov/imap/i2694/

  January 1, 2004
  Initial release online on the old Geopubs server