Ancient Monuments

History on the Ground

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Walton Mill Rath

A Scheduled Monument in Wiston (Cas-wis), Pembrokeshire (Sir Benfro)

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Latitude: 51.8717 / 51°52'17"N

Longitude: -4.859 / 4°51'32"W

OS Eastings: 203279

OS Northings: 223096

OS Grid: SN032230

Mapcode National: GBR CQ.S9FK

Mapcode Global: VH1R8.Q7M0

Entry Name: Walton Mill Rath

Scheduled Date: 24 November 1994

Source: Cadw

Source ID: 3292

Cadw Legacy ID: PE460

Schedule Class: Monument

Category: Enclosure

Period: Prehistoric

County: Pembrokeshire (Sir Benfro)

Community: Wiston (Cas-wis)

Traditional County: Pembrokeshire


The monument comprises the remains of an earthwork/stone-built enclosure. The date or precise nature of the enclosure is unknown, but it is likely to be later prehistoric or medieval. Walton Mill Rath survives partly as an earthwork and partly as a cropmark. The site consists of an inner circular enclosure c 40m in diameter, within a polygonal outer ditch enclosure. Immediately to the south-east is a rectangular cropmark c 50m by 45m.

The monument is of national importance for its potential to enhance our knowledge of later prehistoric defensive organisation and settlement. The site forms an important element within the wider later prehistoric context and within the surrounding landscape. The site is well preserved and retains considerable archaeological potential. There is a strong probability of the presence of evidence relating to chronology, building techniques and functional detail.

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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