
Trading Post and the town of Pleasanton anchor this mid-century survey of eastern Linn County, where the Marais Des Cygnes River winds through its wide valley. The landscape is a study in transition, showing the managed wetlands of the Marais Des Cygnes Waterfowl Area alongside the industrial footprint of local Strip Mines. For genealogists, the map is particularly dense with rural landmarks, including the Green Valley Sch and Mound Valley Sch, and several family and community burial grounds such as Holmes Cem and Littell Cem. The rail-dominated history of the region is evident through the St Louis San Francisco line and a prominent Old Railroad Grade. This record of the Potosi township area captures the balance between river-fed agriculture and the encroaching coal and gravel industry in the late 1950s.
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