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Cof Cymru: National Historic Assets of Wales · Wales

Cefn Man Moel cross-ridge dyke

Cwm, Caerphilly, Wales

The record

Designation
Scheduled monument
Site type
Cross Ridge Dyke
Period
Unknown
Date of designation
5 March 2008
Community
Cwm
Unitary authority
Caerphilly
Country
Wales
Coordinates (centre of the scheduled area)
51.74416, -3.20179
SAM number
MM345
Cadw record number
1117

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

Shown on 5 historical map sheets, the earliest the 1636 "Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ..." (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

The following provides a general description of the Scheduled Ancient Monument.

The monument comprises a linear cross-ridge dyke running across the Cefn Man Moel ridge. The earthen bank is aligned from NE to SW and measures about 270m in length by about 5m in thickness and up to 0.7m in height; the associated ditch is situated immediately to the NW and measures about 2.5m in width and about 0.6m in depth. There is intermittent evidence of a low counterscarp bank. The tradition of cross-dyke building appears to roughly span two millennia, beginning in the middle Bronze Age and lasting throughout the Iron Age and into the early medieval period. They have been interpreted as territorial boundaries, defining areas of political influence and ritual association, including internal territorial boundaries and land allotment within communities.

The monument is of national importance for its potential to enhance our knowledge of prehistoric or early medieval land division. The monument is an important relic of a prehistoric or early medieval landscape and retains significant archaeological potential, with a strong probability of the presence of environmental and structural evidence.

The area scheduled comprises the remains described and an area around them within which related evidence may be expected to survive. It measures about 270m in length from NE to SW and 12m in width.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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