Ancient Monuments

History on the Ground

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A Scheduled Monument in Llanbedrog, Gwynedd

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Latitude: 52.8545 / 52°51'16"N

Longitude: -4.4913 / 4°29'28"W

OS Eastings: 232352

OS Northings: 331464

OS Grid: SH323314

Mapcode National: GBR 57.S7F9

Mapcode Global: WH44N.ZJG0

Entry Name: Pen-y-Gaer

Scheduled Date: 26 September 1994

Source: Cadw

Source ID: 550

Cadw Legacy ID: CN221

Schedule Class: Defence

Category: Promontory Fort - inland

Period: Prehistoric

County: Gwynedd

Community: Llanbedrog

Traditional County: Caernarfonshire


A promontory fort dates from the Iron Age. It faces a similar fortified enclosure at Nant y Castell across a very steep-sided gorge. The natural protection afforded by the cliff to the W was supplemented by three defensive banks around the E. Cultivation has removed part of the outer bank but the inner banks are clearly visible.

The site is important because the interior is relatively undisturbed, and therefore retains considerable archaeological potential. Its location immediately opposite a similar monument of roughly the same date adds to its significance and group value.

The monument is of national importance for its potential to enhance our knowledge of prehistoric settlement and defence. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits. The structures themselves 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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