Horicon Marsh
Horicon Marsh is the largest freshwater cattail marsh in the United States. Located in southeast Wisconsin, the marsh is renown for more than 260 kinds of birds which call it home at different parts of the year. Due to its importance to wildlife, Horicon Marsh has been designated as a "Wetland of International Importance" and a "Globally Important Bird Area." Horicon Marsh is both a state wildlife area and national wildlife refuge.
The Green Bay lobe of the Wisconsin glaciation created Horicon Marsh. The glacier, during its advance created many drumlins in the region, many of which have become the islands of Horicon Marsh. During the glacier's retreat, a moraine was created, forming a natural dam holding back the waters from the melting glacier and forming Glacial Lake Horicon. The Rock River slowly eroded the moraine, and the lake drained. As the levels of silt, clay and peat accumulated in the former lake's basin, the Horicon Marsh was formed.
June 27, 2007 1:51 PM | Category: Watershed