Swansea Valley, UK. 17th Sep, 2015. The two mine entrances have been blocked and is slowly disapearing and being claimed by nature. Four miners were killed on 15 September 2011. The mine had been worked for over 100 years. It will probably never be worked again. © roger tiley/Alamy Live News

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Photo credit: © roger tiley / Alamy / Afripics
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Keywords: 2011, anniversary, archive, coal, colliers, explosion, flood, gleision, history, miners, mining, pit, pits, roger, south, swansea, tiley, valley, valleys, wales, water, welsh