Are you referring to a John Armstrong plan from that era that's 10'x20' in HO? It can be found in Linn Westcott's 101 Track Plans for Model Railroaders.
hi Jim me again stagingyards Im looking for some pics of Ramapo valley rr I was wondering if you have the march 1979 Rail-road Model Craftsman Im trying to figure out the 3d of the layout and it is nice to be back at the gauge