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Fond du Lac Loop Bike Tour
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Supple Marsh is a 107 acre wetland in Lakeside Park. Named for the original owners, the Supple Family, the DNR states that the marsh was probably formed during the retreat of a glacial ice sheet. As the ice retreated, gravel and rocks were deposited, forming a large lake called Glacial Lake Oshkosh. Centuries later, this lake became known as Lake Winnebago.

Water, Building, Plant, Tree

The Supple Marsh adjoins Lake Winnebago which has long been regarded as an excellent haven for fish and game. The Winnebago Native Americans fished and hunted in the marsh years before the settlers came. As the years progressed and the population grew, hunters and anglers came to the marsh to hunt and fish for profit, sport, and food. As its popularity grew, the state leased the area as private duck hunting ground and later leased as one of the best areas for mallard, Black duck, teal, and muskrat hunting. On March 25, 1929, Mathias Supple purchased the marsh from the Wisconsin Central Land Co., the holding firm for the Soo Line Railway. The Supple family started a fur farm here in 1932, harvesting as many as 6,000 muskrats in one year. The family also worked as ice merchants, cutting large ice blocks during the winter months to be stored in a Water Street warehouse. From there, the Supple ice trucks would deliver the blocks throughout the city for refrigeration needs and use by the railroad. In 1967, the City of Fond du Lac acquired the marsh from the Supple family. Hunting and trapping are no longer allowed, as Supple's Marsh has become a nature conservancy for all to enjoy.