Ancient Monuments

History on the Ground

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Mynydd Ton Cairns

A Scheduled Monument in Ogmore Valley (Cwm Ogwr), Bridgend (Pen-y-bont ar Ogwr)

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Latitude: 51.635 / 51°38'6"N

Longitude: -3.5206 / 3°31'13"W

OS Eastings: 294862

OS Northings: 194007

OS Grid: SS948940

Mapcode National: GBR HG.8C5K

Mapcode Global: VH5GZ.X5PF

Entry Name: Mynydd Ton Cairns

Scheduled Date: 9 December 1999

Source: Cadw

Source ID: 842

Cadw Legacy ID: GM540

Schedule Class: Religious, Ritual and Funerary

Category: Round cairn

Period: Prehistoric

County: Bridgend (Pen-y-bont ar Ogwr)

Community: Ogmore Valley (Cwm Ogwr)

Built-Up Area: Nant-y-moel

Traditional County: Glamorgan


The monument comprises the remains of two burial cairns, probably dating to the Bronze Age (c. 2300 - 800 BC). The two cairns are stone built and measure c. 10m in diameter. There may have once been a third cairn further to the north, forming a line. Cairn I (item A) is located at NGR 294793 / 294793 within a forest ride. Cairn II (item B) is currently located within dense forestry at NGR 294931 / 194059.

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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