SP GP40X 7231 at the SP Taylor Yard in Los Angeles.
One of the four SP GP-40X units lead an eastbound manifest.
Flares! All four SP GP40Xs and an SDP45 as viewed from the Pepper Ave bridge in Colton, CA.
SP had only 4 GP-40X units.
SP GP40Xs with "elephant ears" in the late 1970s were very, very cool...