Dewey Marsh, Wisconsin, Wildlife area in Portage County, Wisconsin.
Dewey Marsh is a wetland area in central Wisconsin containing marshes, open water, and forested edges spread across multiple habitat zones. The terrain supports varied plant and animal communities, connected by trails that visitors use to explore different sections.
The area became a protected reserve in 1973 when the Wisconsin Department of Natural Resources took control, shifting it from a hunting and fishing trading post to conservation. A significant fire in 1974 reshaped how the wetland's plants and animals developed afterward.
The marsh is a place where visitors encounter the importance of wetlands for wildlife and observe how local ecology depends on water systems. People come here to connect with nature and understand why these habitats matter for the region.
Marked trails and viewing platforms are available at multiple access points with parking areas near the entrances. Spring and fall offer the best times to see birds, while muddy conditions in wetter seasons may make walking more challenging.
The marsh displays visible effects of a major fire from 1974 that triggered new bog formation and changed vegetation patterns. This fire-driven transformation makes it a natural example of how wetlands can regenerate and shift their ecology.
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