Beaver Dam State Park is an Illinois state park on 750 acres (304 ha) in Macoupin County, Illinois in the United States. The park is 7 miles (11 km) southwest of Carlinville, Illinois and is managed by the Illinois Department of Natural Resources (IDNR) as a public place for fishing. (Ref: https://en.wikipedia.org/wiki/Beaver_Dam_State_Park_(Illinois))