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Cof Cymru: National Historic Assets of Wales · Wales

Ffynnon Aelrhiw

Aberdaron, Gwynedd, Wales

A Grade II listed building in Rhiw, Pwllheli, Aberdaron, Gwynedd, designated on 19 October 1971.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Ffynnon Aelrhiw, Aberdaron, 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
Water Supply and Drainage
Date of designation
19 October 1971
Locality
Rhiw
Town
Pwllheli
Community
Aberdaron
Unitary authority
Gwynedd
Country
Wales
Coordinates
52.82479, -4.62268
Cadw reference
4241

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 1608 map "(13) Cambriae Typus." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1608 · (13) Cambriae Typus. (David Rumsey Map Collection, Stanford Libraries)
  • 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 · 134 Pwllheli (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 9 and 10. (David Rumsey Map Collection, Stanford Libraries)

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This record in Cadw's own full report ↗

Cadw's description

Holy well connected with St Aelrhiw. It was said to cure scrofulous diseases and particularly 'Man Aeliw', Aeliw's spot, a skin disease.

Holy well, basin and surround of uncertain date, small square pool with low steps on N side, higher steps on E with outlet for water beneath. Rubble and earth bank to small enclosure with entry on N.

Included as a holy well with long history.

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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