According to MR's index, you have two likely choices. The first article, which is a bit early, is entitled:
"The Timber River RR, 14'x30' "(January 1985)
The second article, more likely the one you seek, is:
"Hauling Ore on the Timber River Ry. 27'x33' Room" (November 1992)
CNJ831
i am looking for a layout not sure the name but i think it is called timber river rr i seen it in model railroader i think in the early 90s i am trying to find out what issue it was in thanks for your help