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Cof Cymru: National Historic Assets of Wales · Wales

Tirgwyn Standing Stones

Llannor, Gwynedd, Wales

The record

Designation
Scheduled monument
Site type
Standing Stone
Period
Prehistoric
Community
Llannor
Unitary authority
Gwynedd
Country
Wales
Coordinates (centre of the scheduled area)
52.92391, -4.46465
SAM number
CN097
Cadw record number
560

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 1830 "V.3:11-15:XV. Britisches Reich. A. Kon: England. b. Frstenthum Wales: Shire: 37-40" (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 two standing stones, which probably dates to the Bronze Age (c. 2300 - 800 BC).

The two stones are aligned on a north-south axis and stand 175 m apart. The northern stone is 2.3 m high and is quadrilateral at the base, two of the sides measuring 0.75 m, the others 0.7 and 0.84 m. This stone is leaning slightly towards the north. The southern stone is 2.6 m high and is triangular at the base, two of the sides measuring 0.95 m and the third 1.05 m.

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 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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