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Cof Cymru: National Historic Assets of Wales · Wales

Maen Llwyd in Glynllifon

Llandwrog, Gwynedd, Wales

A scheduled monument in Llandwrog, Gwynedd, recorded as Standing Stone (Prehistoric).

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Maen Llwyd in Glynllifon, Llandwrog, Gwynedd, 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
Standing Stone
Period
Prehistoric
Community
Llandwrog
Unitary authority
Gwynedd
Country
Wales
Coordinates (centre of the scheduled area)
53.06192, -4.32203
SAM number
CN143
Cadw record number
3484

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 1795 map "To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most humbly inscribed by his obedient humble servant" (Llyfrgell Genedlaethol Cymru – The National Library of Wales).

Historical maps covering this location

  • 1795 · To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most… (Llyfrgell Genedlaethol Cymru – The National Library of Wales)
  • 1883 · Watershed map England, Wales 3. (David Rumsey Map Collection, Stanford Libraries)
  • 1896 · Sheet 7. Ordnance Survey of England and Wales. (David Rumsey Map Collection, Stanford Libraries)
  • 1899 · 118 Nevin (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 9 and 10. (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 Monument.

The monument comprises a large standing stone, which probably dates to the Bronze Age (c. 2300 - 800 BC). It measures 2.9 m high; the base is roughly of four sides, the north and east sides being 1.2 m wide, the west side 0.9 m wide and the south side 0.65 m wide. There are strong striated lines down the north face, and also seven small slots 0.30 m long, 0.75 - 1cm wide and 2.0 cm deep. They run diagonally down the face of the stone, covering a spread of 0.34 m. The stone stands in parkland, which was once part of the Glynllifon estate.

An excavation in 1875 on the E side of the stone found evidence of a cremation and fragments of an urn, probably of Early Bronze Age date. Further excavations in 1931 yielded some pieces of quartz, charcoal and a few small packing stones.

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 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 be 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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