November 2012 Archives

U.S. Explorers 1501 to 1844

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explorers.jpg


This map was published as part of a United States Geological Survey Bulletin in 1923.


It shows the "routes of the principal explorers" in the United States between 1501 and 1844.


Click on the image to view the full size map.

Lake Superior (1832)

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lakesuperior1832.jpg


This map was published as part of a volume titled Maps of the Society for the Diffusion of Useful Knowledge.


The SDUK, as the Society was known, produced inexpensive maps to encourage broad use in education.


Though the atlas was published in 1844, individual maps were produced as early as 1829.

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