Mills come in all sorts of shapes and sizes and were required for so many different purposes. Mold has its area called Leadmills, Holywell a windmill, Buckley the Windmill Grill and at Ffynongroyw, the Garth Mill was converted into a public house. But we need to go much further back to find our earliest mills. In Greenfield Valley Heritage Park we find what remains of the 12th century Basingwerk Abbey. The monks of the abbey harnessed the power of the water to run their corn mil, and in the following centuries Greenfield Valley was at the forefront of the industrial revolution.