I don't believe anyone has mentioned the 2-foot gauge Bucksgahuda & Western RR near St. Mary's PA. The B&W is built in part of a former standard gauge roadbed and is about two miles long. It operates a 2-truck Shay, a Henschel 0-4-0T, a Davenport an a Brookville . The enthusiasts who open their line to the public two or three times a year have built or acquired the accouterments of a "real" railroad - engine house, turntable, wye, passenger station, water tower, etc. It is actually a rather neat little operation.