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 5520, built June 1977; C30-7 Number 5562, built October 1978; in Sterling, Colorado on August 24, 1981. Maintenance base "Alliance" for Number 5520. 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 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 5617, former Northern Pacific Number 2517; SD9 Number 6156, former Burlington Number 354; in Saint Paul, Minnesota on February 29, 1980. Photo by Al Christianson.

Burlington Northern Type U25C Number 5627, former Northern Pacific Number 2527; U25C Number 5637, former Burlington Number 557; U28C Number 5673, former Northern Pacific Number 2807; passing Hoffman Avenue interlocking in Daytons Bluff, Minnesota with two Great Northern ballast hoppers, including Number 78264, on April 15, 1980. Photo by Al Christianson.

Burlington Northern Type U25C Number 5627, former Northern Pacific Number 2527; U25C Number 5637, former Burlington Number 557; U28C Number 5673, former Northern Pacific Number 2807; passing Hoffman Avenue interlocking in Daytons Bluff, Minnesota with eastbound freight on April 15, 1980. 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.