Burlington Northern F9A Number 774, F9B Number 833; F9A Number 784, F9A Number 790, all former Northern Pacific; in Minneapolis, Minnesota overhead view on August 14, 1980. Photo by Al Christianson.

Burlington Northern F9A Number 774, F9B Number 833; F9A Number 784, F9A Number 790, all former Northern Pacific; in Minneapolis, Minnesota on August 14, 1980. Photo by Al Christianson.

Burlington Northern F9A Number 774, F9B Number 833; F9A Number 784, F9A Number 790, all former Northern Pacific; in Minneapolis, Minnesota on August 14, 1980. Photo by Al Christianson.

Burlington Northern GP10 Number 1406, former Burlington Northern Number 1506 rebuilt in July 1975 from former Great Northern GP7 Number 606; GP20 Number 2035, former Great Northern Number 2035; with westbound freight passing the former Northern Pacific depot at Fargo, North Dakota on April 17, 1981. Photo by Al Christianson.

Burlington Northern GP10 Number 1422, former Burlington Northern Number 1528 rebuilt in June 1975 from former Great Northern GP7 Number 628; GP9 Number 1869, former Northern Pacific Number 246; at Portland, Oregon on May 5, 1982. Photo by Joseph Kubus.

Burlington Northern Type C30-7 Number 5504, built December 1976; SD40-2 Number 7029, built February 1978; and Milwaukee SD40-2 with Northern Pacific and Cotton Belt boxcars in background at Minneapolis, Minnesota on April 15, 1979. Photo by Al Christianson.

Burlington Northern Type C30-7 Number 5534, built December 1977; U30C Number 5839, built June 1975; a GP9 (number unknown); and U25B Number 5404, former Great Northern Number 2504; and a St. Louis-San Francisco Railway (Frisco) GP35 at Omaha, Nebraska on August 4, 1979. Photo by Al Christianson.

Burlington Northern Type C30-7 Number 5534, built December 1977; U30C Number 5839, built June 1975; a GP9 (number unknown); U25B Number 5404, former Great Northern Number 2504; and a St. Louis-San Francisco Railway (Frisco) GP35 at Omaha, Nebraska on August 4, 1979. Photo by Al Christianson.

Burlington Northern Type C30-7 Number 5534, built December 1977; U30C Number 5839, built June 1975; a GP9 (number unknown); and a St. Louis-San Francisco Railway (Frisco) GP35 at Omaha, Nebraska on August 4, 1979. Photo by Al Christianson.

Burlington Northern Type U25C Number 5640, former Burlington Number 560; SD40-2 Number 7887, built April, 1979; in Minneapolis, Minnesota on February 28, 1980. Photo by Jim Shepard.