Bells Spur at Shalona

The narrow gauge situation in the Shalona crossing area has suddenly gotten mysterious with the revelation of a limestone quarry spur called Bells Spur that was removed in 1939. Looking down on the Shalona crossing from above, it doesn't seem obvious that a spur took off here





And signs of a limestone quarry don't immediately jump out from ground level





Looking toward the Shalona ledge, there is not much evidence of a quarry either



I don't have views looking in the opposite direction since there is no track there. I would be most interesting to see a track map showing this mystery spur.