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Terrace of cottages at Aberllefenni. - geograph.org.uk - 433609.jpg
Pensarn Terrace
Aberllefenni is located in Gwynedd
Location within Gwynedd
OS grid referenceSH770097
Principal area
  • Gwynedd
Ceremonial county
  • Gwynedd
Sovereign stateUnited Kingdom
Postcode districtSY20
Dialling code01654
PoliceNorth Wales
FireNorth Wales
EU ParliamentWales
UK Parliament
Welsh Assembly
List of places
52°40′23″N 3°49′08″W / 52.673°N 3.819°W / 52.673; -3.819Coordinates: 52°40′23″N 3°49′08″W / 52.673°N 3.819°W / 52.673; -3.819

Aberllefenni is a village in the south of Gwynedd, Wales. It lies in the historic county of Merionethshire/Sir Feirionnydd, in the valley of the Afon Dulas, and in the community of Corris.

It is the location of Foel Grochan, a slate quarry which together with Hen Chwarel and Ceunant Ddu formed the Aberllefenni Slate Quarry, which extracted rock from mediaeval times until the beginning of the 21st Century.[1] The quarry waste tips appear in the No Quarter: Jimmy Page and Robert Plant Unledded video when Jimmy Page and Robert Plant, formerly of Led Zeppelin, performed there with their band in August 1994.

The Roman road between northern and southern Roman Wales, Sarn Helen, probably ran through the village; the terrace of houses known as Pensarn (head of the causeway) may be a reference to it.

The village is the site of a field study site for secondary school pupils.


Plas Aberllefenni (also known as "Y Plas") was a mediaeval manor house, but the older section was demolished in the 1960s and only a later wing is still standing.

The quarry reservoir, Llyn Cob, was once known as Llyn Owain Lawgoch, after the last male survivor of the princely house of the Kingdom of Gwynedd.

Just north of the village once stood Pont Cymerau, one of the ancient bridges of Wales, which crossed the Afon Dulas just upstream of where it is joined by the Nant Ceiswyn.[2]

The Aberllefenni Brass Band was active from the mid-1880s until the outbreak of the First World War.[3]

Corris Railway[edit]

Location of the former station (1999)

Aberllefenni was the terminus of steam and passenger services on the narrow gauge Corris Railway, which carried slate from the quarries for transshipment at Machynlleth. Aberllefenni Station (now demolished) was used as the basis for Glennock Station on the fictional Skarloey Railway and can be seen illustrated in the book Four Little Engines.

Two horse-worked tramways extended the railway beyond Aberllefenni Station -


  1. ^ a b Alun John Richards (2004). Slate Quarrying at Corris. Llygad Gwalch Cyf. ISBN 978-1-84524-068-4.
  2. ^ Edwyn Jervoise; Society for the Protection of Ancient Buildings (London, England) (1936). The ancient bridges of Wales and western England. The Architectural press.
  3. ^ Gavin Holman. Brass Bands of the British Isles 1800-2018 - a historical directory. Gavin Holman. pp. 16–. GGKEY:GQ33ZH6H71E.

Preceding station   Disused railways   Following station
Garneddwen   Corris Railway   Terminus