Getting close to the MP A9 mile, there are a bunch of Hart Convertible Gondolas. dumped off the side close to where the track was to where it was barely shoved off to the side. With all the cars I've seen, it seems most were hauled on flat cars and then pushed off, or picked up and placed due to that fact there are not many sets of trucks. If most of the cars rolled in on the tracks, it would make sense the old Arch Bar trucks would have gone with it since that type was banned by the 1930s other than MOW use. Here you can see multiple frames.