Location: Cornwall, Lebanon County
Dates of Operation: 1742 to 1883
Owners: Peter Grubb and sons; Robert Coleman
Historical Significance: Cornwall Iron Furnace, a National Historic Landmark, is the most fully intact and best preserved example of a 19th-century charcoal fueled blast furnace in Pennsylvania. Robert Coleman was one of Pennsylvania’s first millionaires. Cornwall was representative of Pennsylvania’s 18th and 19th century iron plantations, where villages, stores, schools, churches, and more developed around a successful furnace.
