No. 3015 at Denali National Park. My wife and I just got off the train which originated in Anchorage.
Photo courtesy of John Combs
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Number 3015 was rebuilt and repainted in 2001.  It also had Head End Power (HEP) added.
Photo courtesy of John Combs

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ARR GP40 No. 3015 at Anchorage Diesel House. August 1981
Photo courtesy of Gary Munsey

Photo courtesy of Stewart Sterling, Anchorage, 5-82