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Cof Cymru: National Historic Assets of Wales · Wales

Llys Arthur, Dyffryn-Castell

Blaenrheidol, Ceredigion, Wales

A scheduled monument in Blaenrheidol, Ceredigion, recorded as Moated Site (Medieval).

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Llys Arthur, Dyffryn-Castell, Blaenrheidol, Ceredigion, 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
Moated Site
Period
Medieval
Date of designation
2 October 1933
Community
Blaenrheidol
Unitary authority
Ceredigion
Country
Wales
Coordinates (centre of the scheduled area)
52.42704, -3.78588
SAM number
CD023
Cadw record number
1836

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 1608 map "(13) Cambriae Typus." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1608 · (13) Cambriae Typus. (David Rumsey Map Collection, Stanford Libraries)
  • 1830 · V.3:11-15:XV. Britisches Reich. A. Kon: England. b. Frstenthum Wales: Shire: 37-40 (David Rumsey Map Collection, Stanford Libraries)
  • 1883 · Watershed map England, Wales 3. (David Rumsey Map Collection, Stanford Libraries)
  • 1899 · 163 Aberystwyth (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 14. (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 the remains of a well-preserved rectangular camp, possibly of Roman date. The site comprises a single bank c 2m high with a shallow ditch of rectangular plan. Two south corners are preserved and look Roman. The eastern side has been ploughed away and c.1900 a bronze axe was found during ploughing. The north-west corner has been ruined, possibly by peat digging, but can be reconstructed. A probable original entrance in the western side has been dug away to make an entrance into the field to the west, but slight traces remain. A gap in the north-west side looks too narrow to be original and there may be a counterscarp here unless it is a plough line. The site is surrounded by bog except to the west and north-west, since it lies on the very tip of a slight elevation.

The monument is of national importance for its potential to enhance our knowledge of Roman settlement. The monument is well preserved and is an important relic of the Roman landscape. It retains significant archaeological potential, with a strong probability of the presence of intact archaeological deposits and structural evidence.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive. It measures approximately 108 metres N-S by 96 metres W-E.

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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