Ancient Monuments

History on the Ground

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Castell Allt-Goch

A Scheduled Monument in Llangybi, Ceredigion

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Latitude: 52.1314 / 52°7'53"N

Longitude: -4.0563 / 4°3'22"W

OS Eastings: 259350

OS Northings: 250119

OS Grid: SN593501

Mapcode National: GBR DS.7Y88

Mapcode Global: VH4GQ.MPZD

Entry Name: Castell Allt-Goch

Scheduled Date: 21 September 1949

Source: Cadw

Source ID: 3733

Cadw Legacy ID: CD106

Schedule Class: Defence

Category: Hillfort

Period: Prehistoric

County: Ceredigion

Community: Llangybi

Traditional County: Cardiganshire


The monument comprises the remains of a hillfort, which probably dates to the Iron Age period (c. 800 BC - AD 74, the Roman conquest of Wales). Hillforts are usually located on hilltops and surrounded by a single or multiple earthworks of massive proportions. Hillforts must have formed symbols of power within the landscape, while their function may have had as much to do with ostentation and display as defence. Castell Allt-Goch occupies a local summit within a ridge trending north-east to south-west on the northern side of the Teifi valley. It is a rather irregular oval enclosure, measuring c.152m north-south by 84m, tapering towards the southern end, defined by substantial banks or scarps varying in internal height from c.0.3m to c.1m, with slight traces of an external ditch on the east and west sides. Two additional detached banks and ditches have been provided on the gentler east slope. Hints of an internal cross-bank suggest that an original, roughly oval enclosure c.70 to 80m in diameter at the north end was later extended to the south. A possible entrance lies on the west just south of the point where the two appear to join.

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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