If any of you fine folks can get to, or live near enough to visit the area, those furnaces are pretty amazing. They are massive! The one near to where I was hunting is in the state park. It gives me a HUGE respect for what the ones before us had to go through just to produce iron. Mining the ore, limestone, baking it, loading all of that, plus the charcoal, tending it etc. All before front end loaders, trucks, electric! Just amazing. The hills around the furnace are just covered in tailings, cinders, etc.
That is pretty ironic, pig hunting, pig iron. Both are very useful to me, one just tastes better after 8 hours on my smoker.
Phil