Adirondack Iron & Steel Company, New Furnace, Hudson River, Tahawus, Essex County, NY

Significance: The surviving remains of the "New Furnace" contain several very rare items, including the stack, a Nielsen-type hot blast stove, and the blowing engine, built by the Hudson River Iron and Machine Company of Ft. Edward, New York. During the 1850s the American iron industry witnessed the change from a charcoal-burning to a coal-burning smelting process. The site clearly portrays this historical transition in technology. Unprocessed Field note material exists for this structure: FN-30 Survey number: HAER NY-123 Building/structure dates: 1854 Initial Construction Building/structure dates: 1832 Initial Construction Building/structure dates: 1833 Subsequent Work Building/structure dates: 1839 Subsequent Work Building/structure dates: 1840 Subsequent Work Building/structure dates: 1844 Subsequent Work Building/structure dates: 1845 Subsequent Work Building/structure dates: 1846 Subsequent Work Building/structure dates: 1849-1854 Subsequent Work