Ancient Monuments

History on the Ground

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Carn Pentyle-Hir & Adjacent Round Cairn

A Scheduled Monument in Cyfarthfa, Merthyr Tydfil (Merthyr Tudful)

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Latitude: 51.7379 / 51°44'16"N

Longitude: -3.4196 / 3°25'10"W

OS Eastings: 302069

OS Northings: 205305

OS Grid: SO020053

Mapcode National: GBR HM.1LK6

Mapcode Global: VH6CX.PL13

Entry Name: Carn Pentyle-Hir & Adjacent Round Cairn

Scheduled Date: 13 June 1979

Source: Cadw

Source ID: 2291

Cadw Legacy ID: GM402

Schedule Class: Religious, Ritual and Funerary

Category: Round cairn

Period: Prehistoric

County: Merthyr Tydfil (Merthyr Tudful)

Community: Cyfarthfa

Traditional County: Glamorgan


The monument comprises the remains of two burial cairns, probably dating to the Bronze Age (c. 2300 - 800 BC).

Cairn A - located on eastern end of ridge on open moorland. Measuring 6m in diameter by 0.6m high on east end. Old excavation hole in the centre and traces of a stone kerb.

Cairn B - located on the edge of the moorland plateau. Measuring c. 0.5m high with an underterminable diameter. It consists of a scatter of boulders with some kerb stones showing.

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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