Theresa Marsh State Wildlife Area

Nestled in the heart of northeastern Dodge and northwestern Washington counties, Theresa Marsh Wildlife Area spans nearly 5,500 acres of state-owned land, complemented by 300 acres of publicly accessible easements. This expansive and ecologically rich area is centered around the East Branch of the Rock River, which flows northward through its core.

The wildlife area is a haven for diverse habitats, with wetlands comprising 80 percent of the property. These wetlands include vibrant emergent marshes and lush bottomland hardwood forests that support a wide variety of plant and animal species. The uplands offer a dynamic mix of grasslands, farmland, and upland hardwood forests, creating a mosaic of ecosystems ideal for wildlife observation, outdoor recreation, and conservation education.

Whether you’re here to explore, learn, or simply enjoy the natural beauty, Theresa Marsh Wildlife Area provides an unforgettable experience for nature enthusiasts of all kinds.