North Wales Coalfield

The North Wales Coalfield comprises the Flintshire Coalfield in the north and the Denbighshire Coalfield in the south. It extends from Point of Ayr in the north, through the Wrexham area to Oswestry in Shropshire in the south. A much smaller area on Anglesey where coal was formerly mined is not usually considered to form a part of the coalfield, although it is geographically in the North Wales region.

The engine house and winding gear at Bersham Colliery
19th-century British coalfields

History

In north Wales, the Flintshire manors of Ewloe, Hopedale, and Mostyn and the Denbighshire manor of Brymbo were recorded as making profits from trading coal during the 14th and 15th centuries. By 1593, coal was exported from ports on the Dee estuary. Trade developed swiftly and by 1616, the principal collieries were at Bagillt, Englefield, Leaderbrook, Mostyn, Uphfytton and Wepre.[1] Most were horizontal adits or shallow bell pits, although a few were sufficiently large to have accumulations of water and ventilation problems.[2]

In the Denbighshire Coalfield, the areas of Chirk, Ruabon and Wrexham became heavily industrialised and exploited large deposits of iron, coal and clay. The last pit here, the Bersham Colliery closed in 1986 when it became uneconomic.[3]

Geography

The North Wales Coalfield is divided into the Flintshire Coalfield to the north and the nearly contiguous Denbighshire Coalfield to the south.[1] The Flintshire Coalfield extends from the Point of Ayr in the north, through Connah's Quay to Caergwrle in the south and under the Dee Estuary to the Neston area of the Wirral Peninsula. The Denbighshire Coalfield extends from near Caergwrle in the north, to Wrexham, Ruabon, Rhosllannerchrugog and Chirk in the south, a small part extending into Shropshire in the Oswestry area.[4]

References
  1. The North Wales Coalfield, Coalmining History Research Centre, 1953, archived from the original on 4 March 2016, retrieved 26 April 2016
  2. "The growth and development of settlement and population in Flintshire, 1801–1851". Flintshire Historical Society Publications. 25. 1971–1972.
  3. "Denbighshire Collieries". Clwyd Family History Society. 23 June 2012. Retrieved 25 April 2016.
  4. "Bedrock Geology: UK South, 1:625,000 scale geological map (5th edn)". British Geological Survey. 2007. Missing or empty |url= (help)

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