Inscription
Site of a charcoal iron forge begun about 1782 by Curtis Grubb, owner of Cornwall Iron Furnace; a major user of Cornwall iron. Such forges transformed brittle pig iron into workable wrought iron. Union Forge included 1,000 acres of land, blacksmith and carpenter shops, a grist mill, and several houses.
Under different owners, the forge was in regular operation until 1868. By then, rolling mills were displacing forges as refiners of iron.
Location
Sources
More markers in Lebanon
Jacob Albright
Kleinfeltersville, PA
The son of German immigrants, Jacob Albright (1759-1808) founded the Evangelical Association, preached to poor farmers, and rose to...
Schaefferstown Water Company
Schaefferstown, PA
One of North America's oldest documented public water systems.
Cornwall Banks
Cornwall, PA
One of the world's greatest iron mines, the oldest operated continuously in the New World.
Lindley Murray
East Hanover Twp., PA
Famous grammarian, author of the English Grammar, was born June 7, 1745, in a house near this point.
Fort Zeller
Newmanstown, PA
The State's oldest existing fort is half a mile to the north.
