.Pistos

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Also on display in Kenefick Park is the Union Pacific Big Boy. "No. 4023 is one of twenty five "Big Boy" articulated steam engines operated between 1941 and 1959. It was specifically designed to haul fast, heavy eastbound freight trains between Utah and Wyoming, over a 1.14 percent grade. All of the Big Boys were coal-burning, stoker-fired, designed to run 7,000 horsepower at 70 miles per hour. They have been lauded in the industry as the highest horsepower, heaviest, and longest steam locomotives ever built." [asme.org]