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This rare, cold-blast iron furnace, which stands thirty-two feet tall in the shape of a truncated pyramid, has an excellent interior and reconstructed wooden scaffolding that illustrate the original method of loading. Called variously “Highland” and “Hieland” furnace, the name “Helen” has been in common usage the longest. Built by Robert Barber, it operated until 1857, and is now a historic site. Other stone furnaces survive in the county, but none are as accessible or as well maintained.