The old Moorish mills, so often found on secluded streams, are characteristic objects in Spanish landscape, and suggestive of the perilous times of old. They are of stone, and often in the form of towers with loopholes and battlements, capable of defence in those warlike days when the country on both sides of the border was subject to sudden inroad and hasty ravage, and when men had to labor with their weapons at hand, and some place of temporary refuge.