I RECALL NARROW GAUGE TRACKAGE BESIDE THE SP MAINLINE AND THEN RUNNING BACK THRU THE FIELDS TO STORAGE DUMPS. SEEM TO RECALL THEY HAD DOUBLE TRUCK BOX CARS. ANYONE KNOW THE EXTENT OF TRACKAGE, TYPE OF MOTIVE POWER ..OR A RARE TREAT WOULD BE TO SEE A PICTURE OF THEIR EQUIPMENT. A STRONG EARTHQUAKE HIT THE EASTBAY THE NITE AFTER WALKING THEIR TRACK IN LATE 30s - AT FIRST WE THOT THE PLANT HAD BLOWN UP.