Modern retail park built at the end of the 20th century on the site of Cortonwood Colliery. Taylor (2001, 118) dates Cortonwood back to the 1873 sinking of a shaft to the Barnsley seam. However a 'Cortwood' Colliery is depicted on this site on the 1855 6 inch OS mapping. The announcement of the closure of Cortonwood on March 1st 1984(http://news.bbc.co.uk/onthisday/hi/dates/stories/march/12/newsid_2540000/2540175.stm) led directly to the 'Great Strike' led by the National Union of Mineworkers between 12th March 1984 and 3rd March 1985. The mine closed in 1985 with the loss of 800 jobs. No legibility of the mine or the earlier strip enclosure of former open field visible within this polygon although part of the pit spoil heap remains to the south of this polygon. Pit head buildings cleared by 1989.