Interesting that there is a mix of open and closed hatches. I would guess this WB move is empty reefers from Roseville for loading on the Coast Division from Santa Clara County south to Santa Margarita.?
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The lower line is the Mococo line to Tracy via Pittsburg and Antioch.?
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At this time it appears SP steam was concentrated on the mostly level Western Division Cal-Pacific line and level San Joaquin Division the running out the rest of useful lives.?
Ken Adams