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‹ Cof Cymru: National Historic Assets of Wales, Wales

Cof Cymru: National Historic Assets of Wales · Wales

Round Cairn 648m NE of Tan-y-Foel

Llansannan, Conwy, Wales

The record

Designation
Scheduled monument
Site type
Round Cairn
Period
Prehistoric
Community
Llansannan
Unitary authority
Conwy
Country
Wales
Coordinates (centre of the scheduled area)
53.14575, -3.61734
SAM number
DE157
Cadw record number
3601

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 1795 "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).

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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 consists of a large turf-covered mound, the remains of an earthen-built round barrow (burial mound), which probably dates to the Bronze Age (c.2300 - 800 BC). It is located 12m NW of the minor road from Llansannan to Rhyd-Y-Bedd, within common rough pasture and is known locally as 'Boncyn Crwn'. Its diameter is 20m NW-SE with its height varying between a minimum of 1.8m from the SW to 2.5m from the SE. The SE side runs down to the road verge. The top of the mound has a bowl-shaped depression circa 3.0m in diameter and 0.5m deep. There are extensive views all round of surrounding moorland.

The monument is of national importance for its potential to enhance our knowledge of prehistoric funerary and ritual practises. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits which may be expected to contain archaeological information concerning chronology and techniques of construction.

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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