Mont Alto State Forest in extreme southern PA borders the campus of the PSU Mont Alto campus. Upon exploring the very small state park my girlfriend and I noticed some ruins of the iron works that used to occupy the entire area. I'm not sure if the ruins sit on the campus or on state park lands. The building is a very interesting concrete building with about 4 or 5 bays and the ruins of the metal chutes above them. Between each bay was an arched doorway. By far one of the coolest local finds I've come across in a while!