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Hello All,
  I received an ad today from a place called Chalk Butte Inc.
Digital Maps which enclosed part of a map titled Michigan Peninsula
Digital Landforms.  This map is 43.5" X 35".  It was produced from
USGS 3 Arc Second Data.  For information on the map, I suggest that
you contact the publisher at the address below:
 
Chalk Butte Inc. Digital Maps
137 Steele Lane
Boulder, WY  82923
 
Linda Zellmer
University of Wyoming