TreeAlive
‹ Cof Cymru: National Historic Assets of Wales, Wales

Cof Cymru: National Historic Assets of Wales · Wales

Cwm Brwynog Deserted Rural Settlement

Llanberis, Gwynedd, Wales

A scheduled monument in Llanberis, Gwynedd, recorded as Deserted Rural Settlement (Medieval).

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Cwm Brwynog Deserted Rural Settlement, Llanberis, 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
Deserted Rural Settlement
Period
Medieval
Date of designation
12 September 2000
Community
Llanberis
Unitary authority
Gwynedd
Country
Wales
Coordinates (centre of the scheduled area)
53.09012, -4.10183
SAM number
CN315
Cadw record number
3887

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 · 106 Bangor (Outline) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 9 and 10. (David Rumsey Map Collection, Stanford Libraries)

Get directions ↗

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 well-preserved example of a large, complex and possibly multi-phase upland rural settlement located in Cwm Brwynog. It is situated roughly halfway between Llanberis and the summit of Yr Wyddfa/Snowdon as the crow flies.

The site comprises the stone foundations of nine rectangular long huts, a rectangular house platform and a square shelter or pen. These are probably the surviving remains of the hafotai collectively recorded as 'Combroinok' in the 1352 Record of Caernarfon.

The monument is of national importance for its potential to enhance our knowledge of medieval settlement organisation. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits. Added interest is given by the survival of documentary information and the possibility that the settlement has developed through several phases of occupation and use. Large medieval settlements are rare and important survivals.

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
See your own family's places on a living map