Amazing ALLEGHENY museum layout.

Believed to be the third oldest model railroad club in the U.S., it's quite possibly the oldest model railroad club devoted to building strictly in HO scale at its inception. Their first "layout" was a simple loop used to help develop standards for the NMRA in its efforts to improve the manufacturing and operation of early model railroad equipment. The Pennsylvania RR was the obvious prototype railroad to model. Features Since 1988, members of the Western Pennsylvania Model Railroad Museum (WPMRM) have been working on a 40 x 100-foot model railroad set between Pittsburgh, Pa., and Cumberland, Md. [Extracted from the article]