Cornwall Iron Furnace is the most complete charcoal burning iron furnace in the United States. It is located in Lebanon County, PA.

The inside pictures were taken in low light at ISO 1600 and no tripod, so some are blurry. I was also on a tour and tried to do my best. I think I did get some interesting shots, with some lovely colors and textures.
BellOutside WallOutside Wall IIIron FurnaceUpper Part of the FurnaceFurnace Air DuctThe Great WheelThe AbbatoirNeo Gothic ArchitechtureFlowering Tree