1966. Scale approximately 1:130,000; Indexed.
    
  
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      1966. Scale [ca.1:200,000]; Includes illustrations, location map and inset map of Drummond Island.
    
  
    
      1966. Scale [1:126,720]. 1/2 in. = 1 mile; Panel title: Clinton County, Michigan. W.S. McAlpine Map Co.
    
  
    
      1966. Scale approximately 1:116,000; Includes index to roads.