Ancient Monuments

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Foel Cwm-sian Llwyd cairn

A Scheduled Monument in Llandderfel, Gwynedd

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Coordinates

Latitude: 52.8737 / 52°52'25"N

Longitude: -3.4915 / 3°29'29"W

OS Eastings: 299708

OS Northings: 331728

OS Grid: SH997317

Mapcode National: GBR 6J.R4C0

Mapcode Global: WH67F.B1M9

Entry Name: Foel Cwm-sian Llwyd cairn

Scheduled Date: 30 June 2004

Source: Cadw

Source ID: 4100

Cadw Legacy ID: ME243

Schedule Class: Religious, Ritual and Funerary

Category: Round cairn

Period: Prehistoric

County: Gwynedd

Community: Llandderfel

Traditional County: Merionethshire

Description

The monument comprises the remains of a burial cairn, probably dating to the Bronze Age (c.2300 BC - 800 BC) and situated within open moorland on the N end of the ridge of Foel Cwm-Sian Llwyd. The grass-covered stone built cairn is circular on plan and measures about 15m in diameter and up to 1.5m in height on its N side. A large rectangular drystone shooting butt has been raised on its summit.

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 environmental and structural evidence, including a buried prehistoric land surface.

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 30m in diameter.

Source: Cadw

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