Fort Worth and Denver Railway diesel locomotive 609 switching at Amarillo, Texas in 1978. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive

Fort Worth and Denver Railway diesel locomotive 609 switching at Amarillo, Texas in 1978. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive

Fort Worth and Denver Railway diesel locomotive 608 sits under a highway overpass in Amarillo, Texas on June 21, 1978. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive

Chicago, Rock Island & Pacific Railroad diesel locomotive 811 switches cars at Amarillo, Texas on June 21, 1978. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive

Chicago, Rock Island & Pacific Railroad diesel locomotive 4346 at Amarillo, Texas on June 21, 1978. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive

Chicago, Rock Island & Pacific Railroad diesel locomotive 4346 at Amarillo, Texas on June 21, 1978. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive

Burlington Northern diesel locomotive 5638, formerly Chicago, Burlington and Quincy 558, at Amarillo, Texas, on June 28, 1978. Number 5638 is a U25C built by General Electric, builder's number 35605. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.