Fifteen years ago today—May 20, 2008, I made this telephoto view of a Union Pacific SD70ACe leading an eastward freight at Colfax, Calif., on the ascent of Donner Pass.

I was working on my book ‘Railroads of California’ and looking to update my coverage of the Donner Pass crossing.

The photo was exposed on Fujichrome using a Canon EOS-3 with 100-400mm Canon zoom lens. Telephoto compression accentuated th effects of the gradient at Colfax.

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