Note: St. Marys, PA is about 25 miles north of I-80 and 100 miles east of the Ohio-Pennsylvania border.
This is the Bucksgahuda & Western. A privately owned 2-foot gauge rail operation at St Marys, PA. It is open to the public only twice a year. The Star locomotive is the #1...OTTO, a 1939 Henschel. Other units include Vulcans, Plymouths, Brookvilles, and some home built critters. The main-line features a descending grade of 22% and an ascending grade of 12%. It may only be 2 foot and small, but it sounds like awesome.
the video links are provided here: