Horicon Marsh National Wildlife Refuge is located in Wisconsin and is one of the largest freshwater marshes in the United States. Covering over 32,000 acres, it provides a vital habitat for a diverse range of wildlife, including migratory birds, amphibians, and various plant species. The refuge is particularly known for its population of Canada geese, which migrate through the area each year. Established in 1941, the refuge aims to protect and preserve the unique ecosystem of the marsh. Visitors can enjoy activities such as birdwatching, hiking, and photography, making it a popular destination for nature enthusiasts. The refuge also plays a crucial role in conservation efforts and environmental education.