Preliminary chart of part of Lake Superior comprising the data obtained up to the close of field operations in 1867 and published in 1868
In 1841, Congress created the Lake Survey within the U.S. Army Topographical Engineers, which later became part of the U.S. Army Corps of Engineers. The Survey, based in Detroit, Michigan, was charged with conducting a hydrographical survey of the Northern and Northwestern Lakes and preparing and pu...
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Washington, D.C.
U.S. Lake Survey
1868
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