Active Water Processing Complex. Modern buildings and dam on Ingbirchworth Reservoir (to West). Built between 1851 and 1891 OS mapping as Ingbirchworth Reservoir (Barnsley Corporation Waterworks). 1851 1:10560 OS map records Ingbirchworth Corn Mill on this site. Significant legibility of previous types due to the survival of Corn Mill building within the polygon. Ingbirchworth Mill (Corn) recorded at SE 21690 05800 on 1851 OS (1:10560) powered from a mill race taken off the 'Broad Stone Dike'. Race now submerged in Ingbirchworth Reservoir. On 1851 map Corn Mill sits within a landscape of Parliamentary Enclosure. The origin of the moorland landscape is uncertain though this area is likely to be moorland by the Roman period (see Bevan 2003 for discussion of environmental evidence in region).