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Cwm Colliery, Beddau, Llantwit Fardre, Rhondda-Cynon-Taff, Wales, UK

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Latitude & Longitude (WGS84): 51° 33' 59'' North , 3° 20' 36'' West
Latitude & Longitude (decimal): 51.56650,-3.34336
UK National Grid Reference:ST069862
Other regions containing this locality:Glamorgan, Wales, UK
Köppen climate type:Cfb : Temperate oceanic climate
Other/historical region names associated with this locality:Mid Glamorgan; Glamorgan

Cwm Colliery was opened by the Great Western Colliery Co. in 1914 and taken over by Powell Duffryn Associated Collieries Ltd. in the 1920s. In 1938 there were 1,269 men employed.

Following a reconstruction scheme in the 1950s, Cwm Colliery was linked underground and worked jointly with Coed Ely Colliery, over 5km to the west. By the 1970's the collieries jointly produced 515,000 tons of steam coal a year with a workforce of 1,580 men.

Cwm Colliery closed in November 1986. Extensive area of dumps currently remain, only partially landscaped and with new material being exposed all the time in drain-off runnels, between Church Village and Beddau Coke Works.

Mineral List

2 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on

Westphalian - Moscovian
307 - 315.2 Ma

ID: 2036670
South Wales Upper Coal Measures Formation

Age: Pennsylvanian (307 - 315.2 Ma)

Stratigraphic Name: South Wales Upper Coal Measures Formation of South Wales Coal Measures Group

Lithology: Mudstone, siltstone, sandstone, coal, ironstone and ferricrete

Reference: British Geological Survey. DiGMapGB-625. British Geological Survey ©NERC. [23]

Data and map coding provided by, used under Creative Commons Attribution 4.0 License

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