The above photograph was taken in San Bernardino just nine years before ATSF 3780's historic last run.
On Aug. 27, 1957, ATSF 5021 (2-10-4) and ATSF 3780 (4-8-4) were used as helpers through the Abo Pass between Belen and Mountainair, New Mexico. No. 5021 returned to Belen first, followed by No. 3780, making ATSF 3780 the last Santa Fe steam locomotive to perform revenue service for the Santa Fe. ATSF 5021 was the last of its class (2-10-4) to see revenue service.
Santa Fe kept some big steam laid-up-good-order until 1959, just in case they needed it during a traffic surge. The only Santa Fe steam operations in 1956 and 1957 had been on the Abo helper district in New Mexico and only during the summer peak season.
ATSF 3780 was scrapped on May 4, 1959.
ATSF 5021 (2-10-4) and 2925 (4-8-4), which last helped a train over the pass in 1956, were "held for posterity" in the Belen roundhouse. In 1981, the engines were moved to Albuquerque where Santa Fe was housing a collection of historic diesels.
In 1986, the engines went to the California State Railroad Museum in Sacramento, CA. The Museum had neither the facilities nor the resources to properly house, restore or care for all of the engines. ATSF 5021 and many of the Santa Fe historical collection are stored outside, and most of them out of public view.