Burlington Northern diesel locomotive 5839 in a power lash-up at Omaha, Nebraska on August 4, 1979. Number 5839 is a U30C built by General Electric (GE), builder's number 40605. Photo by Al Christianson.

Burlington Northern diesel locomotive 5534 at Omaha, Nebraska on August 4, 1979. Number 5534 is a C30-7 built by General Electric (GE). From the Al Christianson Collection, the photographer is Al Christianson.

Burlington Northern diesel locomotive 5534 at Omaha, Nebraska on August 4, 1979. Number 5534 is a C30-7 built by General Electric (GE). From the Al Christianson Collection, the photographer is Al Christianson.

Burlington Northern diesel locomotive 5534 at Omaha, Nebraska on August 4, 1979. Number 5534 is a C30-7 built by General Electric (GE). From the Al Christianson Collection, the photographer is Al Christianson.

Burlington Northern diesel locomotive 5534 at Omaha, Nebraska on August 4, 1979. Number 5534 is a C30-7 built by General Electric (GE). From the Al Christianson Collection, the photographer is Al Christianson.

Burlington Northern SW10 Number 575, former Chicogo, Burlington and Quincy Number 9311, in Omaha, Nebraska on August 4, 1979. Photo by Al Christianson.

Burlington Northern SW10 Number 577, former Chicogo, Burlington and Quincy Number 9313, in Omaha, Nebraska on August 4, 1979. Photo by Al Christianson.

Burlington Northern SW10 Number 577, former Chicogo, Burlington and Quincy Number 9313, in Omaha, Nebraska on August 4, 1979. Photo by Al Christianson.

Burlington Northern SW10 Number 583, former Chicogo, Burlington and Quincy Number 9319, in Omaha, Nebraska on August 4, 1979. Photo by Al Christianson.

Burlington Northern SW10 Number 583, former Chicogo, Burlington and Quincy Number 9319, in Omaha, Nebraska on August 4, 1979. Photo by Al Christianson.