There is an article on kitbashing an HO scale cement plant in the April 1995 MR that was inspired by a feature in the July 1963 MR. It was written by Walt Niehoff and based on a plant along Cayuga Lake in New York.
Thanks - that may be it .... now that I know what issue I'm digging for.
(EDIT) - That was it.
Mark.
¡ uʍop ǝpısdn sı ǝɹnʇɐuƃıs ʎɯ 'dlǝɥ
Add a cement plant to your layout, by Ken Nelson, July 1994?
Also see this thread: http://cs.trains.com/mrr/f/88/t/197136.aspx?sortorder=desc&page=2
I'm 99% sure it was MR .... they ran an article on cement plants quite a few years ago featuring a couple different major plants. The one plant was the old Penn Dixie plant in Howes Cave New York. Anyone have any idea what issue that was ?