1934. 2012-03-30T19:12:23Z. 2015-10-21T15:21:48Z. United States. War Dept. Corps of Engineers. U.S. Lake Survey. English. Public. Kewaunee (Wis.), Two Rivers (Wis.), and Michigan, Lake.
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1934. 2012-04-30T17:06:14Z. 2015-10-21T15:22:11Z. United States. War Dept. Corps of Engineers. U.S. Lake Survey. English. Public. Waukegan (Wis.), Port Washington (Wis.), and Michigan, Lake.