State Quarry, Iowa Men's Reformatory

The State Quarry, Iowa Men's Reformatory, located northwest of Anamosa, Iowa, is a historic district recognized for its significance and listed on the National Register of Historic Places since 1992. Established in the late 19th century, the quarry was operated by the Anamosa prison, providing stone for the prison's construction and other state buildings. The site features three notable stone structures built between 1904 and 1938, showcasing a simplified Romanesque Revival architectural style. Key buildings include a dining hall, tool house, and scale house, while a Pratt truss bridge from 1912 adds to the site's historical value. The quarry operated until 1943, making it a fascinating destination for tourists and researchers interested in industrial history and architecture.