FIMX 4023 accelerates out of the interchange with NS in Rockwood to begin the 2% climb to Willet Hollow tunnel. 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).
