carajul,
the old Raritan River RR tracks that go into the factory complex are still there but not used. if you are in Milltown on Main stareet look for the trestle behind the Hess gas station . The trestle has a mural painted on it, that trestle ran into the industrial complex off of Ford Ave. and Main Street. There were other tracks that ran for ther freight station across washington Avenue. If you go to the Freight station and look towards main street you will see the remains of old trackage. The book Rails up the Rariatan 1983 author the late Fred Diebert has some maps of the Rairlaod and where they went. The book has been out of print for a long time. The South Amboy Public Library had a copy of that book in 1998, but it can't be taken out of the library. I hope this info has helped you steve coraggio