I think, given the e-mail address, that this is the railroad that ran around Oscars Dreamland near Billings Montana. I believe that the total trackage is about a mile (or slightly more) the gauge is 30" or 36". There is one passenger car (think open trolley car) and what sort of looks like a tender frame (though could be homebuilt). I think the site has at least two switches, but more parts and pieces may be buried in the weeds. I saw it last summer and have a couple shots of the engine for those interested.