heres more trys: the layout goes on a single track behind the bookshelf next to the yard in the photo, it comes out the other side, which has track laid but nothing else so far. The bridge in photo 4 is my bridge over the Schulykill river in Phenixville. Putting a tunnel in on the south side of it (not done) and still have to put in water. That wall of the shelf is only 5" wide, so its merely a double track with the bridge and tunnel. All the action is on two of the other sides. And THANKS! Ron!