Plowers plowing the snow road, Newfound Gap, TennesseeGreat Smoky Mountains National ParkThese pictures illustrate one advantage of tandem plowing: The workhorse V-Plow, Big John, bulls back the rapidly accumulating snow berm, while a blade plow follows to remove the residue from the roadway to make it safer for normal traffic.Snow Removal; February 1964 Monthly Report, II-R-SR-7883, Physical Facilities - Roads - Snow Removal Operations