The term “wrought iron” has come to mean different things to different people. To a blacksmith, it refers to a raw material, not a type of work. In the first half of the 19th century, much of the nation’s wrought iron was made in the mountains of Pennsylvania and in the Adirondack Mountains of New York. It was made right on the mountainside where it was mined, and was smelted in a furnace called a bloomery. The newly smelted iron was called a bloom.