Baldwin Lake State Fish and Wildlife Area is a protected public conservation area in southwestern Illinois covering 2,018 acres across Randolph and St. Clair counties. Managed as an Illinois state park, it is oriented toward fish, wildlife, and habitat protection rather than the landscaped amenities of a conventional recreation park. The area centers on Baldwin Lake and the surrounding land, with outdoor use closely tied to the natural setting it preserves. At 817 hectares, it is a substantial conservation property in this part of the state, valued for its emphasis on wildlife, fisheries, and protected habitat.