I'm not sure how much equipment is technically "abandoned". A lot of out-of-service cars and locos are scattered around the state, but it all belongs to somebody. Most are parked to at least preserve them, whether they will ever be restored or not.
Maybe here and there you might find a forgotten wheelset or truck somewhere, but as far as abandoned equipment, I don't think there is much out there that doesn't belong to some person or group.
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