You are in the CarrTracks website Picture Gallery.
On October 31, 1976 I chased one of the longest Santa Fe trains I've ever seen run over the Tehachapi Mountains. This is a combination of trains 901 and 918. Helpers are ten GP30 and GP35 units. The lead engine is about to go over the dragging equipment detector at milepost 340.7. The circuitry is in that silver box and a gumball warning light is on a pole just to the left. You'll see this train again at the Loop. Disk 42