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Latitude: 51.7718 / 51°46'18"N
Longitude: -3.4566 / 3°27'23"W
OS Eastings: 299589
OS Northings: 209130
OS Grid: SN995091
Mapcode National: GBR YL.ZH7M
Mapcode Global: VH6CQ.1QGL
Entry Name: Onllwyn Round Cairn
Scheduled Date: 6 July 2000
Source: Cadw
Source ID: 1599
Cadw Legacy ID: GM530
Schedule Class: Religious, Ritual and Funerary
Category: Round cairn
Period: Prehistoric
County: Merthyr Tydfil (Merthyr Tudful)
Community: Cyfarthfa
Traditional County: Brecknockshire
The monument comprises the remains of a burial cairn probably dating to the Bronze Age (c. 2300 - 800 BC). The cairn measures c. 7m in diameter and stands 0.75m 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.
Source: Cadw
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