Established as a National Park Service area:
August 3, 1938
Annual Budget (fiscal year):
Did You Know?
Cold blast charcoal-fired iron furnaces like Hopewell Furnace were in operation in Pennsylvania as early as 1720. Between 1832 and 1840, 32 such furnaces were built in the state. The U.S. census of 1840 recorded 212 charcoal-fired furnaces operating in Pennsylvania that year.