First light on Donner Pass...

It’s 8:05 am and the Truckee spreader crews are conducting timing runs at Soda Springs, California. Here a conductor rides the front platform of the UP 604 as the spreader crew makes a reverse move near the crossing on a timing run.

Early morning shadows…

NICE, Ryan!

Really nice! [Y][Y]

COOL! [8D]

Great photo, but what is a “timing run”?