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Cof Cymru: National Historic Assets of Wales · Wales

Garnedd Wen Cairn

Llandderfel, Gwynedd, Wales

The record

Designation
Scheduled monument
Site type
Round Cairn
Period
Prehistoric
Date of designation
6 September 2006
Community
Llandderfel
Unitary authority
Gwynedd
Country
Wales
Coordinates (centre of the scheduled area)
52.95801, -3.68558
SAM number
ME254
Cadw record number
1178

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

Shown on 5 historical map sheets, the earliest the 1795 "To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most humbly inscribed by his obedient humble servant" (Llyfrgell Genedlaethol Cymru – The National Library of Wales).

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This record in Cadw's own full report ↗

Cadw's description

The following provides a general description of the Scheduled Monument.

The monument comprises the remains of a large burial cairn, probably dating to the Bronze Age (c.2300 BC - 800 BC). It is situated within enclosed moorland in a prominent position on the summit ridge of Garnedd Wen overlooking Llyn Celyn reservoir to the S. The stone built cairn is circular in shape on plan and measures c.18m in diameter. It has a rounded profile measuring up to 3.5m in height. The 1921 RCAM inventory for Merioneth states that a cist and ashes were removed from the upper matrix of the cairn in 1860 and this is supported by the presence of a central pit measuring 1m deep and 4m wide.

The monument is of national importance for its potential to enhance our knowledge of prehistoric burial and ritual. The monument is an important relic of a prehistoric funerary and ritual landscape and retains significant archaeological potential, with a strong probability of the presence of both intact burial or ritual deposits and structural evidence.

The area scheduled comprises the remains described and an area around them within which related evidence may be expected to survive. It is circular and measures 22m in diameter.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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