The waterwheel was overshot and drove two pairs of French Burr millstones. The mill had a cast iron waterwheel which drove three pairs of millstones. The waterwheel drove three pairs of millstones. At one time the mill had two waterwheels, each working two pairs of millstones. The mill drove three pairs of millstones. The remains of many mills which used horizontal carved millstones are throughout the parish. Both of these Skaggs Phase-sites contained millstones and handstones for grinding seeds. It drove two pairs of French Burr millstones and one pair of Peak millstones. A quarry for two millstones is nearby. These wheels drove six pairs of millstones at 130 revolutions per minute. The "Runner Stone" is the topmost of a pair of millstones. An internal framework supporting the gears and millstones. The Cats mine millstones on Mow Cop and bring food as offerings. The millstones themselves turn at around 120 rpm. The following list comprises stray finds of ancient millstones.