The concrete-faced loading ramp is the only structure still standing from the twenty-acre Andover Iron Furnace property. Mined raw iron ore and anthracite coal were delivered there, where the ore was heated in coal-fired furnaces to make pig iron. That pig iron was shipped to the Trenton Iron Works, later known as the United States Steel Company, in Trenton, New Jersey, first by the Morris Canal and later by railroad, and was used primarily to make steel for thousands of miles of railroad track. It was also used to make gun barrels for the Union Army during the Civil War. The ramp, with one section directly in front and another across the road to the left, appears in an image of the Andover Furnace with an elevated railroad taken circa nineteen hundred. It is part of the Historic District of the Morris Canal and is listed on both the New Jersey State and the National Register of Historic Places.