A pair of General Electric 125 ton, 3000 Volt 'Magna Motors' lead a 90 car train of copper ore from the Bingham Canyon Copper Mine, bound for the car dumpers at Magna, Utah. Built in 1947, the boxy GEs made easy work of Kennecott's 16 mile CTC controlled ore haulage line, with a maximum grade of 1.35%. Each train would make an average of 18 round trips per day along the rolling foothills of the Oquirrh Mountains. Kennecott's venerable 'Magna Motors' would be retired by December 1978, replaced by seven new diesel powered EMD SD40-2s.
