Ancient Monuments

History on the Ground

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Bryn Dinas Cairn

A Scheduled Monument in Tywyn, Gwynedd

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Latitude: 52.5771 / 52°34'37"N

Longitude: -4.0105 / 4°0'37"W

OS Eastings: 263857

OS Northings: 299597

OS Grid: SN638995

Mapcode National: GBR 8V.BR6B

Mapcode Global: WH57D.CHG5

Entry Name: Bryn Dinas Cairn

Scheduled Date: 17 February 2003

Source: Cadw

Source ID: 3995

Cadw Legacy ID: ME232

Schedule Class: Religious, Ritual and Funerary

Category: Round barrow

Period: Prehistoric

County: Gwynedd

Community: Tywyn

Traditional County: Merionethshire


The monument comprises the remains of a round barrow, probably dating to the Bronze Age (c.2300 BC - 800 BC) and situated within rough grazing on the SW end of the Bryn Dinas ridge. The grass-covered earth and stone barrow is circular on plan and measures 5m in diameter and up to 0.6m in height. There is a fine exposed cist in the centre of the cairn, measuring 1.2m in length from NW to SE by about 0.7m transversely and 0.5m in depth. The orthostat that would have formed the SW side of the cist has been removed.

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 the presence of both intact secondary 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 15m in diameter

Source: Cadw

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