Former Southern Railway GE B23-7 4023 leads Lhoist North America’s Crab Orchard Mine train through the west portal of Willet Hollow Tunnel on the former Tennessee Central as the train heads back to the mine. Lhoist North America's Crab Orchard operation is unique in that not only do they ship much of their product out on their own railroad (a very scenic one too, no less), but they also do it while operating two of the only remaining high hood GE locomotives in existence, of which, it's believed that there are only 4 left in the USA (three B23-7's & a U23B).