Cornwall Iron Furnace
Go inside a rare intact charcoal ironworks and trace the labor behind its furnace.

Artwork inspired by N. C. Wyeth
Cornwall's preserved complex is not a picturesque furnace ruin: its stone buildings and machinery still explain how charcoal, ore, water power, and later steam made iron here. The furnace began operating in 1742 and closed in 1883. Its survival makes the mechanics of ironmaking legible, but the larger story includes mining, forests cut for charcoal, transport, and the people who performed dangerous work.
A guided tour is the meaningful way to visit because it connects the exterior's unusual Gothic windows and steep slate roofs to the machinery and working spaces inside. Listen for how materials moved through the stack and how heat and air were controlled. The site has a Friday–Sunday schedule with set tour departures; arrive for a tour, not merely before closing.
- Operated
- 1742–1883
- Furnace type
- Charcoal cold blast
- Best visit
- Scheduled tour
Quick guide
- Read the exterior
- The pointed windows and slate roof belong to the surviving ironworks, not a church.
- Follow the materials
- Trace ore, charcoal, and limestone from loading to molten iron.
Know before you go
- Read the exterior
- The pointed windows and slate roof belong to the surviving ironworks, not a church.
- Follow the materials
- Trace ore, charcoal, and limestone from loading to molten iron.
- Notice the power
- Ask how water and later steam drove the blast machinery.
- Think beyond the stack
- Connect furnace heat to miners, charcoal burners, and transport workers.
Good to know
This is a guided-tour site with only Friday–Sunday public days; a quick exterior stop will not explain the furnace's machinery.
Notice these
- Intact charcoal ironworks
- Gothic-windowed stone building
- Working machinery story