Ancient Monuments

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Deer Park Promontory Fort

A Scheduled Monument in Marloes and St. Brides (Marloes a Sain Ffrêd), Pembrokeshire (Sir Benfro)

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Latitude: 51.7355 / 51°44'7"N

Longitude: -5.2487 / 5°14'55"W

OS Eastings: 175778

OS Northings: 209085

OS Grid: SM757090

Mapcode National: GBR G1.HX05

Mapcode Global: VH0V5.ZM2X

Entry Name: Deer Park Promontory Fort

Scheduled Date: 29 January 1959

Source: Cadw

Source ID: 3069

Cadw Legacy ID: PE323

Schedule Class: Defence

Category: Promontory Fort - coastal

Period: Prehistoric

County: Pembrokeshire (Sir Benfro)

Community: Marloes and St. Brides (Marloes a Sain Ffrêd)

Traditional County: Pembrokeshire


The monument comprises the remains of a defended enclosure, which probably dates to the Iron Age period (c. 800 BC - AD 43). The enclosure is located on a narrow coastal promontory above the sea that marks part of the defensive circuit. The construction of one or more ramparts placed across the neck of the promontory divide it from the mainland. Deer Park Promontory Fort defences are situated at the top of a slope on the east side and comprises a bank above a scarped slope. Towards its south end, where the slope flattens out it becomes a bank and ditch (av. height of bank - 4ft), the bank increasing in height as it approaches the entrance. The entrance is at the south end and has an internal bank defending it: This bank is about 5ft above an external ditch.

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, layout, 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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