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Cof Cymru: National Historic Assets of Wales · Wales

Twyn Bryn March round cairn

Tredegar, Blaenau Gwent, Wales

The record

Designation
Scheduled monument
Site type
Round Cairn
Period
Prehistoric
Date of designation
19 May 2008
Community
Tredegar
Unitary authority
Blaenau Gwent
Country
Wales
Coordinates (centre of the scheduled area)
51.80274, -3.25246
SAM number
MM344
Cadw record number
4329

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David Rumsey Map Collection, Stanford Libraries

Shown on 5 historical map sheets, the earliest the 1636 "Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ..." (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

The following provides a general description of the Scheduled Ancient Monument.

The monument comprises the remains of a burial cairn, probably dating to the Bronze Age (c.2300 BC - 800 BC) and situated in open moorland on the S-facing slopes of Twyn Bryn March above the Nant Milgatw in the Eastern Brecon Beacons. The low stone-built cairn is circular on plan and measures about 5.5m in diameter and 0.2m in height. Although it has been disturbed in the past - there is a slight central depression - the majority of the base of the cairn remains intact.

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 structural evidence and intact burial or ritual deposits.

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 20m in diameter.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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