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Cof Cymru: National Historic Assets of Wales · Wales

Maen Madoc

Ystradfellte, Powys, Wales

A scheduled monument in Ystradfellte, Powys, recorded as Inscribed Stone (Early Medieval).

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Maen Madoc, Ystradfellte, Powys, 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
Inscribed Stone
Period
Early Medieval
Community
Ystradfellte
Unitary authority
Powys
Country
Wales
Coordinates (centre of the scheduled area)
51.83016, -3.57057
SAM number
BR018
Cadw record number
806

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. b. Frstenthum Wales: Shire: 37-40 (David Rumsey Map Collection, Stanford Libraries)
  • 1856 · 42. Brecon. (David Rumsey Map Collection, Stanford Libraries)
  • 1898 · 231 Merthyr Tydfil (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 monument comprises the remains of a standing stone, which probably dates to the early medieval period.

The stone stands on upland moorland beside the Roman road between the forts at Neath and Brecon. It was excavated and re-erected in 1940. It is a straight-sided rectilinear stone c. 2.7 m high standing upright on a stone platform level with the ground c. 2 x 2 m square. There is a vertical inscription on the south-west side to Dervacus son of Justus. The other sides are bare. No burial was found during excavation.

The monument is of national importance for its potential to enhance our knowledge of early medieval burial and ritual practices. It is an important relic of a funerary and ritual landscape and retains significant archaeological potential. There is a strong probability of the presence of intact burial or ritual deposits, together with environmental and structural evidence. Standing stones 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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