Along the banks of Roaring Brook, in downtown Scranton, Pennsylvania, lie the ruins of former iron-making blast furnaces, now transformed into a park and historic site. The furnaces were built between 1848 and 1857. The furnaces were part of the Lackawanna Iron & Steel Company, which was once the largest producer of pig iron in the United States. This iron was largely used for making T-rails for the railroad industry and nails. In 1902, the plant was moved to Lackawanna, New York due to Lackawanna’s proximity to mines producing high-quality…