Ancient Monuments

History on the Ground

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Gaer Fawr

A Scheduled Monument in Guilsfield (Cegidfa), Powys

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Latitude: 52.7093 / 52°42'33"N

Longitude: -3.1501 / 3°9'0"W

OS Eastings: 322393

OS Northings: 313025

OS Grid: SJ223130

Mapcode National: GBR B0.274C

Mapcode Global: WH79H.L549

Entry Name: Gaer Fawr

Scheduled Date:

Source: Cadw

Source ID: 497

Cadw Legacy ID: MG006

Schedule Class: Defence

Category: Hillfort

Period: Prehistoric

County: Powys

Community: Guilsfield (Cegidfa)

Traditional County: Montgomeryshire


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.

Gaer Fawr is a multivallate fort on a hilltop situation. It is roughly oval in shape, measuring 426m NE-SW and 180m NW-SE, enclosing an area of c.6 hectares. There are two main entrances to the interior, in the NE and SW. A third, less complex, entrance lies on the west side, giving access to the lower interior.

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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