1975. 2012-02-22T19:31:35Z. 2015-10-21T15:30:42Z. United States. Army Map Service. Interior--Geological Survey. English. Public. Michigan and Wisconsin.
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1975. 2012-02-22T20:40:43Z. 2015-10-21T15:30:43Z. United States. Army Map Service. Interior--Geological Survey. English. Public. Maine.
1975. 2012-02-23T15:32:27Z. 2015-10-21T15:30:44Z. United States. Army Map Service. Interior--Geological Survey. English. Public. Idaho and Washington (State).