The standard gauge Maryland & Pennsylvania RR had a turntable at Delta, Pa. that was built on a hillside. There was only on track feeding the turntable, which was used to turn engines when the Ma & Pa operated commuter service from Baltimore up to Delta, which was just across the state line. Between 1965 and 1969, it was used occasionally to turn steam locomotives operated by Rail Tours, Inc. that made the journey to Delta from York, Pa. I was a volunteer with Rail Tours from time to time, and I helped turn engines there on two or three occasions. When the table was positioned to accept a locomotive running onto it, the opposite end was probably six to eight feet above the ground. There was only a low concrete wall with the ring rail, and there was only an abutment where the track met the table. Obviously, we had to be in the "pit" to push it around to turn the engine. I have no memory of a turning pole on either end of the turntable. After the railroad was abandoned around 1975, the turntable was donated to the Museum of Transport in St. Louis.