Ancient Monuments

History on the Ground

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Trellwyn Fawr, Standing Stone 60m WSW of

A Scheduled Monument in Cwm Gwaun, Pembrokeshire (Sir Benfro)

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Latitude: 51.9847 / 51°59'4"N

Longitude: -4.9119 / 4°54'42"W

OS Eastings: 200139

OS Northings: 235804

OS Grid: SN001358

Mapcode National: GBR CN.K29J

Mapcode Global: VH1QN.TC4X

Entry Name: Trellwyn Fawr, Standing Stone 60m WSW of

Scheduled Date: 15 November 2005

Source: Cadw

Source ID: 1148

Cadw Legacy ID: PE505

Schedule Class: Religious, Ritual and Funerary

Category: Standing stone

Period: Prehistoric

County: Pembrokeshire (Sir Benfro)

Community: Cwm Gwaun

Traditional County: Pembrokeshire


This fine standing stone, originally part of a standing stone pair, is located in an enclosed field of permanent pasture on a gentle S facing slope with fine views over the Cwm Gwaun valley to the SE. It probably dates to the Bronze Age (c. 2300 BC - 800 BC). The stone is well preserved, upright and earthfast. It measures 1.6m tall, 1.0m wide and 0.5m deep. It is oriented NE-SW and tapers to a flattened tip.

The standing stone is of national importance for its potential to enhance our knowledge of prehistoric ritual practices. Such standing stones are assumed to have had some form of religious or ceremonial function. It represents a notable element in the wider prehistoric and funerary landscape. The monument retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits.

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 10m in diameter.

Source: Cadw

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