@bcmb_train: Rare double-headed geared steam action! 🚂💨 Cass Scenic Railroad Heisler #6 and Shay #5 team up to haul a heavy train to Durbin through the scenic West Virginia mountains! Watch those vertical cylinders & drive shafts spin! #cassscenicrailroad #heisler #shaylocomotive #doubleheader #steamtrain #locomotive #railfan #trainspotting #railway #engineering #usa_tiktok #railwayvideo