Deeside and Moelfferna quarries

The Deeside and Moelfferna quarries were neighbouring slate quarries, near Glyndyfrdwy in North Wales. They were both operated by the same company throughout their history, and were both connected by the Deeside Tramway to the Llangollen and Corwen Railway.

Deeside and Moelfferna
Tipping tramway in Deeside quarry
Location
Map of Denbighshire showing the position of the quarry
Map of Denbighshire showing the position of the quarry
Deeside and Moelfferna
Location in Denbighshire
Locationnear Glyndyfrdwy
CountyMerionethshire (now Denbighshire)
CountryWales, UK
Coordinates52°57′08″N 3°17′30″W
SJ 132 402
Production
ProductsSlate
TypeQuarry
History
Opened1870 (1870) (Deeside quarry)
1876 (Moelfferna quarry)
Closed1947 (1947)
Railways
Technical
Track gauge2 ft (610 mm) (in quarries);[1]
2 ft 7 in (787 mm) (main)[1]

History

Early working: 1870-1900

The original owner of the Deeside quarry was the 1870 Dee Side Slate and Slab Quarry Ltd.[2] The company was sold in 1875.[3]

In 1876, the Moelferna and Dee Side Slate and Slab Quarries Company was formed to purchase both the Deeside quarry and the Moelfferna quarry.[4]

In 1885, the quarries supplied a large slab cistern to the Guinness Brewery in Dublin. The tank measured 50 feet (15 m) by 8 feet (2.4 m) by 5 feet (1.5 m) and was believed to be one of the largest stone tank built at the time.[5]

Accidents: 1900-1915

In 1907 there was a serious accident at the quarry. Edward Rowlands was riding on a loaded slate wagon that was sent down from the Deeside quarry to the head of the incline down to Glyndyfrdwy. Rowlands was on the first wagon of a sequence of four, with the quarry manager Richard Roberts following in a second loaded wagon. The brake failed on the fourth wagon and it gathered speed; the quarryman leapt from the wagon and shouted a warning to the men ahead. The quarryman on the third wagon also jumped free, and the two out-of-control wagons collided with Robert's wagon. He jumped, but sustained serious injuries. The three wagons then hit Rowlands' wagon, derailing all four wagons and causing Rowlands fatal injuries to the lower body.[6]

In 1915, two men, Robert Jones and John Lloyd, were crushed by an unexpected rockfall, weighing 100 tons, in the quarry.[7]

Decline and closure: 1918-1947

After the First World War, the chairman of the company was Percy Dean, who was the MP for Blackburn.[8]

The Deeside quarry ceased working in the 1920s, but the Deeside slate works continued in production using slate from Moelfferna quarry. The enterprise closed in 1947.[9][10]

Transport
Main article: Deeside Tramway

The 2 ft 6 in (762 mm) gauge Deeside Tramway connected the two quarries to the Deeside Slate Works and on down to the transhipment wharf at Glyndyfrdwy. The tramway originally ran between the slate works and Deeside quarry, before being extended in the late 1870s down to the wharf.

Geology

Several beds of Ordovician shales and mudstones run across Mid Wales, from Tywyn in the south-west to Chirk in the north-east. At various points along this band, these sedimentary rocks have undergone compression and metamorphosis into slate.

The Pen-y-glog slate veins on the southern slopes of the Dee valley are worked by the quarries.[11]

References
  1. Boyd, James I.C. (1970) [1965]. Narrow Gauge Railways in Mid-Wales. The British Narrow Gauge Railway (2nd ed.). Lingfield, Surrey: The Oakwood Press. ISBN 978-0-85361-024-3. OCLC 499283322. No.3.
  2. The Railway News. 1870. p. 671.
  3. "Advertising". Llangollen Advertiser Denbighshire Merionethshire and North Wales Journal. 10 September 1875. hdl:10107/3288230.
  4. "Local Items". The Aberystwith Observer. 3 June 1876. hdl:10107/3040819.
  5. "ST ASAPH". Llangollen Advertiser Denbighshire Merionethshire and North Wales Journal. 23 January 1885. hdl:10107/3290629.
  6. "Quarry Fatality". Llangollen Advertiser Denbighshire Merionethshire and North Wales Journal. 16 August 1907. hdl:10107/3178020.
  7. "Corwen". The Cambrian News and Merionethshire Standard. 15 January 1915. hdl:10107/3412644.
  8. Annual Register. J. Dodsley. 1940.
  9. "Deeside Slab Quarry;deeside Slate Quarry (308670)". Coflein. RCAHMW. Retrieved 10 February 2020.
  10. Richards, Alun John (2001). The Slate Railways of Wales. Gwasg Carreg Gwalch. p. 182. ISBN 0-86381-689-4.
  11. "Field Work". Summary of Progress of the Geological Survey of Great Britain and the Museum of Practical Geology. London: Geological Survey of Great Britain, and Museum of Practical Geology (Great Britain): 10–11. 1912.

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