24-03-2022 - Carlsbad, New Mexico, USA-Intrepid Potash plant, Pile of salt © Jim West

13-11-2016 - Pithead and winding wheels of derelict Clipstone Colliery, Nottinghamshire, now a Grade two listed building © John Harris

13-11-2016 - Pithead and winding wheels of derelict Clipstone Colliery, Nottinghamshire, now a Grade two listed building © John Harris

13-11-2016 - Pithead and winding wheels of derelict Clipstone Colliery, Nottinghamshire, now a Grade two listed building © John Harris

19-09-2016 - Leadville, Colorado, USA The Leadville Mining District. Mining for gold, silver, lead, zinc, and copper began here in 1860. The Robert Emmet Mine was the site of a major battle between striking member... © Jim West

19-09-2016 - Leadville, Colorado, USA The Leadville Mining District. Mining for gold, silver, lead, zinc, and copper began here in 1860. The Robert Emmet Mine was the site of a major battle between striking member... © Jim West

03-12-2015 - The last deep coal mine in the UK at Kellingley Colliery near Knottingley, Yorkshire which is scheduled to be closed in December 2015 bringing the deep coal mining industry to an end in the UK. © Mark Pinder

03-12-2015 - The last deep coal mine in the UK at Kellingley Colliery near Knottingley, Yorkshire which is scheduled to be closed in December 2015 bringing the deep coal mining industry to an end in the UK. © Mark Pinder

15-08-2013 - The National Mining Museum Scotland, on the site of Lady Victoria Colliery in Newtongrange, Midlothian. The pit ceased production in 1981. © Philip Wolmuth

07-08-2013 - The National Coal Mining Museum for England, formerly Caphouse Colliery, in Overton, West Yorkshire. The pit, just outside Wakefield, closed in 1985. © Philip Wolmuth

07-08-2013 - The National Coal Mining Museum for England, formerly Caphouse Colliery, in Overton, West Yorkshire. The pit, just outside Wakefield, closed in 1985. © Philip Wolmuth

07-08-2013 - The National Coal Mining Museum for England, formerly Caphouse Colliery, in Overton, West Yorkshire. The pit, just outside Wakefield, closed in 1985. © Philip Wolmuth

08-11-2011 - The pithead and winding gear, Hatfield Main colliery, Stainforth, is one of two remaining pits in South Yorkshire. © Philip Wolmuth

25-12-2010 - Zeche Zollverein, Winding tower of shaft 12, UNESCO World Heritage Site, Essen, Germany. © Timm Sonnenschein

25-12-2010 - Zeche Zollverein, Winding tower of shaft 12, UNESCO World Heritage Site, Essen, Germany. © Timm Sonnenschein

26-03-2009 - Footbridge after coal mine winding wheel and gear reminiscent of the industrial past. New Tredegar, South Wales. © John Harris

26-03-2009 - Footbridge after coal mine winding wheel and gear reminiscent of the industrial past. New Tredegar, South Wales. © John Harris

13-05-1993 - Women Against Pit Closures Trentham Colliery. Supporters of 4 women occupying headgear Trentham Colliery against pit closure, Staffordshire 1993 © John Harris

13-05-1993 - Women Against Pit Closures Trentham Colliery. Supporters of 4 women occupying headgear Trentham Colliery against pit closure, Staffordshire 1993 © John Harris

02-06-1986 - Derelict South Hetton colliery, County Durham closed at the end of miners strike © Peter Arkell

23-05-1986 - Cutting up pit winding gear for scrap, South Wales, 1986 © Peter Arkell

10-05-1986 - Children playing, Senghenydd colliery disaster memorial 1986. It was the worst colliery disaster in Britain. The explosion at Universal Colliery, Aber Valley, Senghynedd, Glamorgan, South Wales, kille... © Peter Arkell

31-10-1984 - Striking miner riddling for coal, South Kirby slagheap, 1984, collecting fuel for the winter, South Kirby, Yorkshire © John Harris

06-10-1984 - Police lines and pickets, Blidworth colliery 1984, Nottinghamshire, miners strike © Peter Arkell

24-07-1984 - Miners Strike 1984 mass picket confronting police lines, Bilston Glen. Norman Strike at the front of a mass picket, Scotland © John Sturrock

05-07-1984 - Family day Picket, Penrikyber Colliery, South Wales, 1984 The Miners Strike. Penrhiwceiber © John Harris

05-07-1984 - Family day Picket, Penrikyber Colliery, South Wales, 1984 The Miners Strike Penrhiwceiber © John Harris

11-05-1984 - Mass picket of striking miners Welbeck colliery, 1984 Nottinghamshire during the miners strike. © NLA

11-05-1984 - Mass picket of striking miners Welbeck colliery, 1984 Nottinghamshire miners strike. © NLA

01-05-1984 - Pickets, Lynemouth colliery 1984 Northumberland. Striking miners. Miners strike © Ray Rising

05-03-1984 - Pickets picketing out spreading the strike Thurcroft 1984 Yorkshire pits. Flying pickets persuading other miners to come out on strike, first day of the Miners strike, Thurcroft colliery © John Harris

12-02-1983 - NUM picket Lewis Merthyr Colliery, 1983 Rhondda Valley, South Wales strike against pit closure © John Harris

08-12-1976 - Miners coming off shift at Snowdon Colliery, Kent, 1976. © John Sturrock

08-12-1976 - Miners coming off shift at Snowdon Colliery, Kent, 1976. © John Sturrock

12-12-1974 - Miner from Rockingham colliery, near Barnsley leaving work © Martin Mayer

25-01-1974 - Miners at Oakdale pit, South Wales, just before the 1974 miners strike. © Martin Mayer

25-01-1974 - Miners leaving work at Oakdale pit, South Wales just before 1974 strike. © Martin Mayer

25-01-1974 - Miners leaving work at Oakdale pit, South Wales just before 1974 strike. © Martin Mayer

25-01-1974 - Miners from Oakdale pit, South Wales, just before 1974 strike © Martin Mayer

25-01-1974 - Miner from Oakdale pit, South Wales, just before 1974 strike. © Martin Mayer

25-01-1974 - Miners leaving work at Oakdale pit, South Wales, just before the 1974 miners strike. © Martin Mayer

25-01-1974 - Miners leaving work at Oakdale pit, South Wales, during work to rule, just before 1974 strike. © Martin Mayer

10-08-1973 - Markham Main colliery disaster. Miners looking towards the pitshaft, site of a lift shaft accident at the pit on 30th July, 1973 which resulted in the deaths of 18 © Peter Harrap

15-01-1972 - Miners cottages at Nantymoel, South Wales overshadowed by the pit head, during 1972 miners strike © Martin Mayer

15-01-1972 - Nantymoel pit village, Ogmore Vale, South Wales, overshadowed by the pit head and slag heap, during 1972 miners strike © Martin Mayer

15-01-1972 - Nantymoel cemetery, Wyndham Western Mine, 1972, Ogmore Vale, South Wales coalfield. A lone figure walks past Nantymoel cemetery, which is overshadowed by the pit. Many of those buried there will have... © Martin Mayer

15-01-1972 - Nantymoel cemetery, Wyndham Western Mine, 1972, Ogmore Vale, South Wales coalfield. A lone figure walks past Nantymoel cemetery, which is overshadowed by the pit. Many of those buried there will have... © Martin Mayer

15-01-1972 - Nantymoel pit village, South Wales, 1972 miners strike. Wyndham Western Mine © Martin Mayer

06-01-1972 - Miners from Taff Merthyr colliery, South Wales, leaving work © Martin Mayer

06-01-1972 - Miners from Taff Merthyr colliery, South Wales, leaving work © Martin Mayer

05-01-1972 - Miners at Oakdale colliery, South Wales leaving work. © Martin Mayer

05-01-1972 - Miners at Oakdale colliery, South Wales leaving work. © Martin Mayer

05-01-1972 - Miner outside Oakdale colliery, South Wales. © Martin Mayer

05-01-1972 - Miners leaving work at Oakdale colliery, South Wales © Martin Mayer

05-01-1972 - Miner at Oakdale colliery, South Wales leaving work © Martin Mayer

12-11-1970 - Tilmonstone Colliery pithead, Kent coalfield 1970 © Martin Mayer

12-11-1970 - Tilmonstone Colliery pithead, Kent coalfield 1970 © Martin Mayer

01-06-1948 - Pit village with Centenary celebrations sign, County Durham 1948 © Elisabeth Chat

01-06-1948 - Miners at Shotton Colliery, County Durham 1948 © Elisabeth Chat

01-06-1948 - Miners at Shotton Colliery, County Durham 1948 © Elisabeth Chat

01-06-1948 - Local grocer delivering goods by horse and cart to the mining families, Horden County Durham 1948 © Elisabeth Chat

01-06-1948 - Miners known as Bevin Boys on their way to work at Easington Colliery 1948 © Elisabeth Chat