The EMD DD35 was a 5,000 horsepower diesel-electric locomotive of D-D wheel arrangement built by General Motors Electro-Motive Division for the Union Pacific Railroad and Southern Pacific Railroad.
Two Union Pacific Railroad EMD DD35s sandwiched between a lead SD45 (#3638) and an unidentified trailing unit.
The ALCO Century 855 was a model of 5,500 hp diesel-electric locomotive built in 1964 by the American Locomotive Company for the Union Pacific. The locomotive was notable for being ALCO's most powerfu
Union Pacific 60B, the only Century 855B built