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Cof Cymru: National Historic Assets of Wales · Wales

Small Fort Near Nantlle

Llanllyfni, Gwynedd, Wales

The record

Designation
Scheduled monument
Site type
Hillfort
Period
Prehistoric
Community
Llanllyfni
Unitary authority
Gwynedd
Country
Wales
Coordinates (centre of the scheduled area)
53.05896, -4.20092
SAM number
CN178
Cadw record number
3416

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 comprises the remains of a small hillfort, probably dating to the Iron Age (c.800BC

Situated on open hillside to the NE of Llyn Nantlle Uchaf, the fort is on a rocky knoll which forms the W end of a small ridge. The enclosure is of irregular shape, c.30m in diameter and surrounded by dry stone walling of large slabs which is about 2.5m in thickness with a slight batter on both sides. Externally it stands to about 1m in places, but internally it is mostly levelled. There is a much-ruined entrance on the W side.

The monument is of national importance for its potential to enhance our knowledge of prehistoric settlement and defence. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits. The structures themselves may be expected to contain archaeological information concerning chronology and building techniques.

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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