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Cof Cymru: National Historic Assets of Wales · Wales

Harold's Stones, Standing Stones

Trellech United, Monmouthshire, Wales

A scheduled monument in Trellech United, Monmouthshire, recorded as Stone Alignment (Prehistoric).

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Harold's Stones, Standing Stones, Trellech United, Monmouthshire, with a pin at the register's coordinates
Ordnance Survey six-inch map, 2nd edition (1888–1913), covering this location. Courtesy of the National Library of Scotland. The pin is ours, placed from the register's coordinates.

The record

Designation
Scheduled monument
Site type
Stone Alignment
Period
Prehistoric
Community
Trellech United
Unitary authority
Monmouthshire
Country
Wales
Coordinates (centre of the scheduled area)
51.74274, -2.72660
SAM number
MM017
Cadw record number
372

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

David Rumsey Map Collection, Stanford Libraries

5 historical maps cover this location, the earliest the 1636 map "Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ..." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1636 · Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ... (David Rumsey Map Collection, Stanford Libraries)
  • 1830 · V.3:11-15:XV.Britisches Reich. A. Kon: England. a. England ab sich: Shire:15-17, 33 (David Rumsey Map Collection, Stanford Libraries)
  • 1895 · Sheet 11. Ordnance Survey of England and Wales. (David Rumsey Map Collection, Stanford Libraries)
  • 1896 · 233 Monmouth (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1913 · Sheet 102. Newport. (David Rumsey Map Collection, Stanford Libraries)

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This record in Cadw's own full report ↗

Cadw's description

The monument comprises the remains of a stone alignment, probably dating to the Bronze Age (c.2300 BC - 800 BC).

There are 3 stones in a north-east-south-west alignment. The total distance between them is 14m. They are made of a conglomerate stone called pudding stone. The stone at the north-east end is 2.2m high, 1m wide and 0.4m thick. It leans slightly towards the north. The middle stone is 2.5m high, 0.7m wide and 0.7m thick, and leans slightly towards the west. The stone at the south-west end is the largest, being 3m high, 1m wide at the base, tapering to 0.4m at the top, and 0.7m wide. It leans considerably towards the south-east.

The monument is of national importance for its potential to enhance our knowledge of prehistoric burial and ritual practices. It is an important relic of a prehistoric funerary and ritual landscape and retain significant archaeological potential, with a strong probability of the presence of both intact burial and ritual deposits and environmental and structural evidence. Stone alignments are often 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.

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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