Just past Palm House B&B on Main St, are the remains of the Caledonian crushing plant. You are still able to see the bridge supports providing access over the moat like water culvert. On the hillside the remnants of the quartz roasting kilns can still be seen. These were used to burn the quartz for up to 24 hours prior to crushing to drive off impurities and make the stone easier to crush. A railway line on the top of the hill brought stone from surrounding mines to crush.
Little remains of the track however cuttings can still be seen across Derby Hill.