 At the end of the Don are the remains of sluices and dams that supply water to the mill lodge for the old Heasandford Mill, historically located further downstream near the old manor house (thought to be anciently the pheasant ford).Close to St. Peter's the remains of a weir can still be seen, the water went through a goit (part of which has been preserved) to a lodge for the town's old corn mill located next to the Bridge Inn.The mill is thought to have been originally erected around 1290 and was still water-powered until 1820.