Iron Valley: The Transformation of the Iron Industry in Ohio's Mahoning Valley
The Youngstown District had one of the largest influences upon our nation's iron and steel history.  Youngstown, Ohio and the surrounding Mahoning Valley supplied the iron that helped transform the United States into an industrial powerhouse. The region rose from a mid-scale iron producer in the 1800s to the "Steel Valley" in the 1900s. It is a story of innovation, stagnation, and change.