Ancient Monuments

History on the Ground

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Blaen y Cwm Round Cairns

A Scheduled Monument in Llanbrynmair (Llanbryn-mair), Powys

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Latitude: 52.5514 / 52°33'5"N

Longitude: -3.5927 / 3°35'33"W

OS Eastings: 292105

OS Northings: 296036

OS Grid: SN921960

Mapcode National: GBR 9F.D645

Mapcode Global: VH5BH.P41D

Entry Name: Blaen y Cwm Round Cairns

Scheduled Date: 27 December 2001

Source: Cadw

Source ID: 3859

Cadw Legacy ID: MG293

Schedule Class: Religious, Ritual and Funerary

Category: Round cairn

Period: Prehistoric

County: Powys

Community: Llanbrynmair (Llanbryn-mair)

Traditional County: Montgomeryshire


The monument comprises the remains two burial cairns, probably dating to the Bronze Age (c. 2300 - 800 BC). Cairn I measures 7m in diameter x 0.2m high and cairn II measures 4m in diameter x 0.3m high.

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 environmental and structural evidence. Cairns may be part of a larger cluster of monuments and their importance can further enhanced by their group value. The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive. It is two circles, one measuring 9m in diameter and centred on cairn I, the other 6m in diameter and centred on cairn II.

Source: Cadw

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