Ancient Monuments

History on the Ground

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Llwyncwmstabl round cairn

A Scheduled Monument in Ystradgynlais, Powys

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Latitude: 51.822 / 51°49'19"N

Longitude: -3.7733 / 3°46'23"W

OS Eastings: 277879

OS Northings: 215194

OS Grid: SN778151

Mapcode National: GBR Y5.WGNX

Mapcode Global: VH5FW.KG2M

Entry Name: Llwyncwmstabl round cairn

Scheduled Date: 9 August 2006

Source: Cadw

Source ID: 4257

Cadw Legacy ID: BR334

Schedule Class: Religious, Ritual and Funerary

Category: Round cairn

Period: Prehistoric

County: Powys

Community: Ystradgynlais

Traditional County: Brecknockshire


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 N-facing side of a locally prominent summit on the SW-facing slopes of the ridge above and to the E of Afon Twrch, in the foothills of the Black Mountain. The low but well-defined stone-built cairn is circular on plan and measures about 6.5m in diameter and up to 0.3m in height. The cairn commands fine views over its N arc, particularly over the Bwlch y Ddeuwynt basin.

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 and environmental and structural evidence.

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 22m in diameter.

Source: Cadw

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