Railroading Heritage of Midwest America is working at a brisk pace to restore Union Pacific 4-6-6-4 “Challenger” 3985 to operation. This spring, significant progress was made on the restoration of the boiler and tender, important steps in the locomotive’s return to mainline service. UP 3985 is one of 105 Challengers built by the American Locomotive Company between 1936 and 1943. The Challengers were used in freight and passenger service, mostly …
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