SP&S 4-8-4 steam locomotive Number 701, Class E-1, with a passenger train at Union Station in Portland, Oregon on August 13, 1949. Photo by Ron Nixon.

SP&S 4-8-4 steam locomotive Number 701, Class E-1, is seen on the Northern Pacific at Paradise, Montana on January 23, 1944. Photo by Ron Nixon.

SP&S 4-8-4 steam locomotive Number 700, Class E-1, at Wishram, Washington on the last day of steam operation on May 20, 1956. Photo by Jim Morris.

SP&S 4-8-4 steam locomotive Number 700, Class E-1, at Wishram, Washington on the last day of steam operation on May 20, 1956. Photo by Jim Mills.

SP&S 4-8-4 steam locomotive Number 700, Class E-1, looking down the top of the boiler at Wishram, Washington during the Farewell to Steam Excursion on May 20, 1956.

SP&S 4-8-4 steam locomotive Number 700, Class E-1, at Wishram, Washington on the last day of steam operation on May 20, 1956.

SP&S 4-8-4 steam locomotive Number 700, Class E-1, at Wishram, Washington on the Farewell to Steam excursion train on May 20, 1956. Photo by W.C. Johnston.

SP&S 4-8-4 steam locomotive Number 700, Class E-1, at Wishram, Washington, on the last day of steam operation on May 20, 1956.

SP&S 4-8-4 steam locomotive Number 700, Class E-1, at Wishram, Washington on the last day of steam operation on May 20, 1956.

SP&S 4-8-4 steam locomotive Number 700, Class E-1, at Wishram, Washington on the last day of steam operation on May 20, 1956. Photo by Frank Seufert.