
This slug of iron is a reminder of a time when the economics of iron production where based on a much smaller scale and when it was feasable, if given raw materials near the surface of the earth, a source of water, and a source of fire, to build an iron plant.
In the early days or our state’s iron production, transportation by horse or by river were limiting factors in the use of a furnace’s product. The results of these factors were a number of blast furnaces producing iron around Maryland. Of course in southern Maryland the existance of slave labor in early years added to this economic equation. However, furnaces, including the Patuxent Iron Works, remained in business long after slavery ended as the demand for iron couldn’t be fulfilled otherwise.
New technologies would make some furnaces obsolete while others became more important, slowly reducing the number of producers. Finally, when transportation costs were low enough to justify the use of efficient, large scaled iron plants in place of local ones, most local furnaces shut down.
This picture of iron from the Patuxent Iron Works comes to us from the Calvert Maritime Museum, but the Patuxent Iron works were located along the river in both Prince George’s and Anne Arundel counties.