Ancient Monuments

History on the Ground

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Y Garn Round Cairn

A Scheduled Monument in Tregaron, Ceredigion

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Latitude: 52.2297 / 52°13'46"N

Longitude: -3.8577 / 3°51'27"W

OS Eastings: 273218

OS Northings: 260677

OS Grid: SN732606

Mapcode National: GBR Y1.1RRH

Mapcode Global: VH4GG.27Y2

Entry Name: Y Garn Round Cairn

Scheduled Date: 29 December 2006

Source: Cadw

Source ID: 1199

Cadw Legacy ID: CD216

Schedule Class: Religious, Ritual and Funerary

Category: Round cairn

Period: Prehistoric

County: Ceredigion

Community: Tregaron

Traditional County: Cardiganshire


The monument, also known as Groes Fechan, comprises the remains of a large burial cairn, probably dating to the Bronze Age (c. 2300 - 800 BC). It is located in rough pasture on the top of a W-facing spur on the W side of Garn Gron mountain. The stone-built cairn is circular in shape on plan and measures c. 17m in diameter and a maximum of 1.2m in height. Although there are signs of disturbance - the central cairn material has been removed in the past to reveal the remains of a cist - it appears substantially intact. The cist is aligned N-S and measures c. 1.1m in length, 0.5m in width and 0.3m in depth. There is a vertically set stone slab on the W side of the cist, which measures c. 1m in length and 0.13m in thickness. A modern shelter has been constructed from cairn material on the SE side of the cairn.

The monument is of national importance for its potential to enhance our knowledge of prehistoric burial and ritual practices. 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, together with structural evidence. The cairn is intervisible with three other cairns located c. 750m to the NE.

The scheduled area 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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