Does anyone know of plans and/or maps of the steam engine facilities in Great Falls? As I understand it, GN built the 2-6-8-0's here in GF. Seems the shops would have to be fairly extensive to support erecting scratchbuilt locomotives. There's plenty of old brick building in the GF near near the enginehouse that could be former GN shop buildings. I'd like to document what's left, but I dunno what's what?