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Latitude: 51.9119 / 51°54'42"N
Longitude: -3.1544 / 3°9'15"W
OS Eastings: 320691
OS Northings: 224332
OS Grid: SO206243
Mapcode National: GBR F0.PL6B
Mapcode Global: VH6C9.86RQ
Entry Name: Pen Allt-mawr platform cairn
Scheduled Date: 3 February 2006
Source ID: 1091
Cadw Legacy ID: BR305
Schedule Class: Religious, Ritual and Funerary
Category: Platform Cairn
Community: Llanfihangel Cwmdu with Bwlch and Cathedine (Llanfihangel Cwm Du gyda Bwlch a Chathedin)
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 leading N-facing edge of the summit of Pen Allt-mawr. The stone-built cairn is roughly circular on plan and measures about 13.5m in diameter. The cairn was possibly originally a platform cairn - the cairn displays no evidence of original 'bulk', while elements of a ring bank (an earth and stone bank 1.5m in thickness) are occasionally visible around the cairn edges. The presence of two further possible platform cairns on the ridge, at Pen Cerrig-calch (BR304) and Pen Gloch-y-pibwr (BR307), supports this interpretation.
The monument is of national importance for its potential to enhance our knowledge of prehistoric burial and ritual practices. The well-preserved 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 likelihood that the cairn is an example of a more unusual structural class of cairn, the platform cairn, further increases its importance.
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.
Other nearby scheduled monuments