The Great Black Swamp (or Black Swamp) was a glacially fed wetland in northwest Ohio, northeast Indiana, and southeast Michigan that existed from the end of the Wisconsin glaciation until the late 19th century. Comprising extensive swamps and marshes interspersed with drier ground, it occupied what was formerly the southwestern part of proglacial Lake Maumee, a precursor to Lake Erie.
The Great Black Swamp (or Black Swamp) was a glacially fed wetland in northwest Ohio, northeast Indiana, and southeast Michigan that existed from the end of the Wisconsin glaciation until the late 19th century. Comprising extensive swamps and marshes interspersed with drier ground, it occupied what was formerly the southwestern part of proglacial Lake Maumee, a precursor to Lake Erie.
Source: Wikipedia "Great Black Swamp" · CC BY-SA 4.0
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