Filling the void between the cost prohibitive joy of owning your own railroad and and the sad reality you can't ride your own HO-scale model trains comes Large Scale Outdoor Railroading. The people who do that around here are known as the Mid-South Live Steamers and they meet at a Columbia city park. This caboose marks the place. For this hobby, the park has laid out 7 1/2 inch track and various locomotive manufacturers produce miniatures that can pull one or dozens. For more info on this group: www.midsouthlivesteamers.org/