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Cof Cymru: National Historic Assets of Wales · Wales

Ffynnon Allgo

Moelfre, Isle of Anglesey, Wales

A scheduled monument in Moelfre, Isle of Anglesey, recorded as Holy Well (Medieval).

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Ffynnon Allgo, Moelfre, Isle of Anglesey, 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
Holy Well
Period
Medieval
Date of designation
14 August 1954
Community
Moelfre
Unitary authority
Isle of Anglesey
Country
Wales
Coordinates (centre of the scheduled area)
53.33852, -4.25595
SAM number
AN068
Cadw record number
2535

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 1883 map "Watershed map England, Wales 3." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 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 · 93 Holyhead (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 9 and 10. (David Rumsey Map Collection, Stanford Libraries)
  • 1919 · Sheet 41. Anglesey. (David Rumsey Map Collection, Stanford Libraries)

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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 the remains of a holy well, possessing religious or otherwise ritualistic significance, probably dating to the medieval or post-medieval period. The well takes the form of a rectangular, sunken tank with paving beside it and walling around; a projecting middle level on the long sides may have been seating. There is an outflow from the NW corner, via which the water joins the stream a short distance away.

The monument is of national importance for its potential to enhance our knowledge of the organisation and practice of Christianity. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits. The structure itself may be expected to contain archaeological information concerning chronology and building techniques. A holy well may be part of a larger cluster of monuments and their importance can be further enhanced by their group value.

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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