
The Mississippi River creates a labyrinthine landscape of shifting channels and massive alluvial deposits along the Illinois-Missouri border. This survey details the complex hydrography of the Tywappity bend, where a network of large islands such as Dogtooth Island, Bumgard Island, and Buffalo Island dominates the river corridor. The presence of a significant Indian Mound near Lake Milligan points to an ancient human presence in this fertile floodplain, long before the establishment of modern settlements like Miller City and Cache.
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