From Wikipedia "Southern Pacific 4294 was the last steam locomotive ordered new by Southern Pacific Railroad (SP). It was built by Baldwin Locomotive Works in March 1944, and was used hauling SP's trains over the Sierra Nevada, often working on Donner Pass." The class AC-12 is rated at 6,000 HP and 124,300 pounds of tractive effort. It is the only Cab Forward preserved. The tender from AC-10 4219 is used by 4449 as an aux tender.
