GREEN MOUNTAIN INC. CONSULTING CONTRACT AMENDMENT NUMBER SIX The consulting contract between Intergraph Corporation and Green Mountain, Inc. dated January 17th 1990 is hereby extended through December 31, 1996. Green Mountain, Inc. Intergraph...

                   [INTERGRAPH LETTERHEAD]


                     GREEN MOUNTAIN INC.
                              
                     CONSULTING CONTRACT
                              
                    AMENDMENT NUMBER SIX


The consulting contract between Intergraph Corporation and
Green Mountain, Inc. dated January 17th 1990 is hereby
extended through December 31, 1996.




Green Mountain, Inc.          Intergraph Corporation

By:  /s/ Xxxxxx X. Xxxxxxx    By:  /s/ Xxxxx Xxxxxx
   -----------------------       ---------------------------- 
Title:  President             Title: Executive Vice President