Lloyd, sorry for the delay, but here are some pics from the area around Freedom Falls and Rockland Furnace that I took while flintlock deer hunting. This furnace was built in 1832:
The pic above is from the hill on the back of the furnace. There would have been a covered wooden charging bridge from here to the top of the furnace for the workers to dump in iron ore, charcoal, and limestone.
Here, I was standing on the remains of the Mill Race near the wheel pit where the water wheel stood:
This is a pic of the tuyere that faces Schull Run, where the waterwheel would pump the drums or bellows to force air into the furnace. I stuffed the bill of my hat into the stones at about 6 feet high to give a sense of scale. This furnace is about 30 feet tall, and the tuyeres are about 10 1/2 feet wide at ground level.