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Cof Cymru: National Historic Assets of Wales · Wales

Careg Fawr (Arch)

Brithdir and Llanfachreth, Gwynedd, Wales

A Grade II listed building in Llanfachreth, Brithdir and Llanfachreth, Gwynedd, designated on 26 May 1995.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Careg Fawr (Arch), Brithdir and Llanfachreth, 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
Listed building, Grade II
Broad class
Gardens, Parks and Urban Spaces
Date of designation
26 May 1995
Locality
Llanfachreth
Community
Brithdir and Llanfachreth
Unitary authority
Gwynedd
Country
Wales
Coordinates
52.78200, -3.83950
Cadw reference
16024

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)
  • 1830 · V.3:11-15:XV. Britisches Reich. A. Kon: England. b. Frstenthum Wales: Shire: 37-40 (David Rumsey Map Collection, Stanford Libraries)
  • 1883 · Watershed map England, Wales 3. (David Rumsey Map Collection, Stanford Libraries)
  • 1899 · 135 Harlech (Hills) (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

Location

Spanning an unclassified road leading S from Llanfachreth village towards the A 494; approximately 2km from Llanfachreth village.

History

Monolithic vernacular arch built c.1820 by Sir Robert Williames Vaughan of Nannau, Bart. as an estate feature, apparently to relieve unemployment.

Exterior

Large rubble-built arch with irregular, flat slate-stone lintel (apparently carried from Harlech). Sloped buttressing to all save the inner sides of the supporting piers with plain string courses in 3 tiers, returned around the sides. Rubble finial to NW side, its complementary one missing.

Reason for designation

An unusual and eccentric early C19 folly in a commanding position. One of a series of picturesque Nannau estate structures.

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
All Gardens, Parks and Urban Spaces in Gwynedd All Unitary authority Gwynedd records All Wales Heritage registers Historical markers (US)National Register of Historic Places (US)
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