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Wisconsin Drift, 1911



Title: Wisconsin Drift
Projection: Unknown,
Source Bounding Coordinates:
W: -92 E: -86 N: 47 S: 42

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Description: A map showing the four drift sheets of Wisconsin.
Source: Isaiah Bowman, Ph. D, Forest Physiography (New York, NY: John Wiley and Sons, 1911) 470
Map Credit: The Private Collection of Roy Winkelman
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 Maps ETC > United States > Wisconsin > Wisconsin Drift, 1911
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