Ancient Monuments

History on the Ground

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Craig Cwm Silyn round cairn

A Scheduled Monument in Llanllyfni, Gwynedd

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Latitude: 53.0293 / 53°1'45"N

Longitude: -4.2001 / 4°12'0"W

OS Eastings: 252554

OS Northings: 350263

OS Grid: SH525502

Mapcode National: GBR 5M.F07M

Mapcode Global: WH555.G460

Entry Name: Craig Cwm Silyn round cairn

Scheduled Date: 6 December 2005

Source: Cadw

Source ID: 1090

Cadw Legacy ID: CN388

Schedule Class: Religious, Ritual and Funerary

Category: Round cairn

Period: Prehistoric

County: Gwynedd

Community: Llanllyfni

Traditional County: Caernarfonshire


The monument comprises the remains of a burial cairn, probably dating to the Bronze Age (c.2300 BC - 800 BC) and situated on the summit of Craig Cwm Silyn, on the ridge between Mynydd Graig Goch to the SW and Mynydd Tal-y-mignedd to the NE. The stone-built cairn is roughly circular on plan and measures about 8.5m in diameter and up to 2m in height. The cairn is substantially intact, although a modern walker's shelter has been constructed within its summit.

The monument is of national importance for its potential to enhance our knowledge of prehistoric burial and ritual practices. The well-preserved 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.

The area to be scheduled comprises the remains described and an area around them within which related evidence may be expected to survive. It is circular and measures 18m in diameter.

Source: Cadw

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