QUOTE: Originally posted by FundyNorthern Well tight places may have been one of the reasons for narrow gauge, but cost was the biggest reason. A narrow gauge line cost quite a bit less than a standard gauge line, mostly in rolling stock. Most of the rolling stock is not standard gauge size, but much smaller. Some narrow gauge lines like the East Broad Top did retruck standard gauge cars with narrow gauge trucks for special loads, but all of their own cars were smaller. Cheaper lines to construct meant the difference between having a railroad and not having one. Bob Boudreau
Have fun with your trains
Jock Ellis Cumming, GA US of A Georgia Association of Railroad Passengers