| | Description: A map of Jefferson County as of 1845 showing rivers, lakes, and the town of Monticello. Place Names: Jefferson, Monticello
 ISO Topic Categories: boundaries, inlandWaters, oceans
 Keywords: Jefferson County, physical, political, physical features, county borders, major political subdivisions, boundaries, inlandWaters, oceans, Unknown,1845
 Source: Sidney Edwards Morse, A system of Geography, for the use of schools (New York, NY: Harper & Brothers, 1845)
 Map Credit: Courtesy the private collection of Roy Winkelman.
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