Dark Sky Over Donner Pass—150th Anniversary of America’s 1st Transcon.

Multiple pass scan adjusted.
Unadjusted scan with inky shadows.


In the early 1990s, Southern Pacific’s Donner Pass was the domain of EMD Tunnel Motors—distinctive six-motor locomotives specifically configured for the route to better accommodate the difficulties operating in tunnels and snow-sheds at high altitudes.

So finding matched sets of modern General Electric four-motor diesels (such as those pictured here) leading freights proved to be highly unusual in the greater scheme of daily operations.

I made this photo in June 1992 at Yuba Pass. Although it has appeared in several places, including Pacific Rail News, I thought it was timely to present it on Tracking the Light. Friday, May 10, 2019 will be the 150th anniversary of the completion of America’s ‘First Transcontinental Railroad’ of which the original Donner Pass crossing was a key component.

This image was exposed on Kodachrome 25 using a Nikon F3T with 35mm PC lens. To compensate for the inky shadows, I made a multi-pass scan using a Nikon Super Coolscan5000 and then imported the hi-res TIF file into Lightroom for adjustment. What you see here are both the unaltered scan and the adjusted versions, both scaled as Jpgs for internet presentation.

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