Western Railroad Discussion > UP rock train from Eastland County Tx to ?

About 2 years ago a company called Vulcan Materials opened a rock quarry in Eastland , County, Tx  at the small town of Olden. The company spent some big bucks on the siding.   It built a siding approx 4 miles south to the quarry along the old right of way (abandoned) for a Texas Electric power plant.  It has 112.5 welded rail and concrete ties and deep ballast  obviously meant to handle heavy loads.  The switch from the x-T&P mainline appears to be dispatcher controlled since it is signaled both east and west and the siding itself has a signal to control movement.

A unit train with air operated unloading cars is used on the train. Does anyone have a symbol for the rock train and know where it goes?

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Shot is of the air mechanism for the hoppers. Also the signal cabinet for the siding.  The hopper cars reporting marks are GACX

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