Runaround at T.O.M. At the WW&F Museum, the letters T.O.M. mean Top of the Mountain. At one time, this was the end of the museum's track, and it's still the turning point for the regular excursions.....until the mountain extension goes into service in 2021. Here, we see B&SR #7, running around an all-B&SR mixed consist, including the one-and-only remaining, road-worthy tank car, and the coach "Mt. Pleasant."