Spoil Heaps, and railway lines associated with Barnsley Main Colliery. Although the mines were first sunk in 1824 (Hill 2001, 58) there was not a significant impact on this land until the early 20th century. The spoil heaps have obliterated the earlier surveyed enclosure which may have been part of the Ardsley 1763 enclosure award (date from English 1985). The colliery closed in 1991 and has recently been landscaped and planted as a public parkland. The surviving earthworks and remnant of mineral railway give significant legibility of the past landscape. Historic maps show several sandstone quarries within this area.