Ashton windmill is a tower mill in Chapel Allerton, Somerset, England. Its tower is over 7.5 metres (25 ft) high with stone walls that are 60 cm (2.0 ft) thick. The sails are 13 m (43 ft) across and used to be covered with canvas. The last millstones were 1.2 m (3.9 ft) across and the millstones used to grind wheat for flour and beans for cattle food. Wikipedia