HO scale model trains are a significant part of model railroading history, and we can partially credit the overall popularity of model trains with the rise of a convenient, tabletop scale like HO.

A new run of the WalthersMainline HO scale EMD GP9 was recently released. Model Railroader Senior Editor Cody Grivno shares a brief history of the Electro-Motive Division road switcher and Central ...