Atchison Topeka & Santa Fe (ATSF) 2279 - Rebuilt EMD GP9u

Built by EMD as ATSF 738 in April of 1957, this loco is a true boomer having bounced from one roster to another. Here's a sampling - nee ATSF 738, ATSF 2279 GP9u, BNSF 1666, NREX 1666, TSRR 1974, CEFX 1900 No location or photographer listed for the slide but based on other photos about the same time, it may have been in California for this photo.