Ancient Monuments

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Ffynnon Cybi (St. Cybi's Well)

A Scheduled Monument in Llangybi, Monmouthshire (Sir Fynwy)

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Latitude: 51.6652 / 51°39'54"N

Longitude: -2.9058 / 2°54'20"W

OS Eastings: 337447

OS Northings: 196661

OS Grid: ST374966

Mapcode National: GBR J9.69SQ

Mapcode Global: VH7B1.LD5S

Entry Name: Ffynnon Cybi (St. Cybi's Well)

Scheduled Date: 20 November 2002

Source: Cadw

Source ID: 1045

Cadw Legacy ID: MM332

Schedule Class: Religious, Ritual and Funerary

Category: Well

Period: Medieval

County: Monmouthshire (Sir Fynwy)

Community: Llangybi

Built-Up Area: Llangybi

Traditional County: Monmouthshire


The monument consists of a medeival or post-medieval holy well know as Ffynnon Cybi or St. Cybi's Well. The exterior comprises a stone-built, rectangular vault some 1.9m by 1.7m by 1.8m high. There is a stone-lintelled opening through which the stream runs eastwards. The internal structure is a circular, corbelled vault. The well itself is 0.75m deep and 1m square.

The monument is of national importance for its potential to enhance our knowledge of water management systems. 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.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

Source: Cadw

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