Large sewage treatment works replacing five others in the Penistone area in 1974 (http://www.environment-agency.gov.uk/commondata/acrobat/91c2apart_2chap5_to_10.pdf) [Accessed 21/03/07]. Built on an area of surveyed enclosure of Black Moor. The south west edge of the polygon corresponds to the dismantled railway line that ran from the coal fields up to Oxspring Junction and on to Penistone. The sewage works is orientated to broadly sit within the surveyed enclosures but legibility is fragmentary. Land was enclosed prior to the Hunshelf parliamentary award. The origin of the former 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).