This polygon marks the limits of the Walk Mill and associated dam, taken from the detailed map reproduced in Crossley 1989, 95. The mill was erected by the Canons of Beauchief in c.1280 as a fulling mill (ibid.) After the dissolution, the mill was in use as a cutlery and tool grinding wheel until 1826 when it was used for paper milling. The mill reverted to grinding in 1845. Industrial activity ceased around the time of the construction of the Midland Railway across the site in 1870. Crossley records no traces of the earlier industrial use of this site, although earthworks within this polygon may well relate to the dam structure - giving fragmentary legibility of earlier use.