What is the largest steam locomotive ever built?
Photo Credit: Courtesy of 3DStockPhoto (steam locomotive image)
Long displayed at Fairplex RailGiants Train Museum in Pomona, California, No. 4014 was re-acquired and restored to operational shape by Union Pacific, then placed in excursion service in May 2019 at its new home in Cheyenne, Wyoming, as the largest, heaviest, and most powerful operational steam locomotive in the world.