I used a book that had a plan for the old Pennsylvania rail yard in Richmond, Indiana. Somewhere along the line I have lost the book and thus the plan. I can't remember the name of the book, I think it was a John Armstrong book. I'm hoping that someone out there can please tell me the name of that book. or where I might be able to get a copy of the plan. A few more clues: The plan was in ho, and was basically just the yard with hidden loops representing connections. This yard was where two mains met, so for a small city it had a good sized yard. I belive it was design to go into an attic. what I want to do is redraw it into n scale to fit my basement. The town I live in is along one the mains that ran into Richmond, but mine is now a bike path. (I did live close to the other main, now NS, for about 7 years also).