In this episode I explore the Lewis Cass Expedition of 1820 which was a survey of the western part of the Michigan Territory, led by Lewis Cass, the Territorial Governor.  The expedition was approved by John Calhoun, the Secretary of War, and had as its purpose to survey the geograohy and topography of the region in order to produce a complete map, as well as survey the flora and fauna, the Native Americans including their numbers, tribes and loyalties the the U.S. or Great Britain.  It also had as a purpose to select sites for forts, survey the geology of the region and also search for the source of the Mississippi River.  The expedition lasted 124 days, and the journals, maps and other books published from this played a significant role in the future of the region.

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