3985, a four-cylinder simple articulated 4-6-6-4 "Challenger" type steam locomotive, built in July 1943 by the American Locomotive Company (ALCO) of Schenectady, New York, leads its charge thru Shermans Pass on this excursion run.

Photographed by Bruce Macdonald, May 24, 1987.
Added to the photo archive by Bruce Macdonald, April 18, 2024.
Railroad: Union Pacific.

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