UP 3985, the 4-6-6-4 Challenger steam engine has been sitting in the roundhouse in Cheyenne, inoperable, since 2010. Many people speculated that UP's restoration of 4014, the Big Boy, might spell the end of the Challengers time on UP's roster. Turns out that has prove to be true as it is on it's way to it's new home with the Railroading Heritage of Midwest America museum in Silvas, IL.
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