Jackson Lake State Park is a 349-acre (141 ha) Ohio state park in Jackson County, Ohio, in the United States. The park was established as a state park in 1979. It had previously been a "state reserve", similar to a park but with less development. The forests in and around Jackson Lake State Park were previously harvested to fire the furnaces of numerous iron works that were located in southern Ohio in the western foothills of the Appalachian Mountains. Recreational activities available at the park include camping, boating, fishing, swimming and picnicking.[2]