Ancient Monuments

History on the Ground

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Fron Goch hillfort

A Scheduled Monument in Glantwymyn, Powys

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Latitude: 52.5973 / 52°35'50"N

Longitude: -3.7403 / 3°44'25"W

OS Eastings: 282223

OS Northings: 301369

OS Grid: SH822013

Mapcode National: GBR 96.9KRD

Mapcode Global: WH68G.JZ46

Entry Name: Fron Goch hillfort

Scheduled Date: 13 March 2008

Source: Cadw

Source ID: 4313

Cadw Legacy ID: MG332

Schedule Class: Defence

Category: Hillfort

Period: Prehistoric

County: Powys

Community: Glantwymyn

Traditional County: Montgomeryshire


The monument comprises a small univallate hillfort, probably dating to the Iron Age (c. 800 BC - 43AD) and the subsequent Roman conquest to 74 AD and is situated on an imposing ridge between Nant Gwydol and Nant Cegir, above the confluence of several valleys. The fort measures c.100m from NE to SW by up to 45m transversely within a rampart spread to c.6m in thickness and up to 1.2m in external height. The rampart follows the contour around the NW side of the fort, which is defined on its SE side by the steep natural rocky slopes of the ridge.

The monument is of national importance for its potential to enhance our knowledge of later prehistoric defensive organisation. The monument forms an important element within the wider Iron Age context and within the surrounding landscape. Although the hillfort has been ploughed in the past, much archaeological potential remains; both the interior and rampart may be expected to contain archaeological information in regard to chronology, building techniques and functional detail.

The scheduled area comprises the remains described and an area around them within which related evidence may be expected to survive. It is measures 120m from NE to SW by up to 60m transversely.

Source: Cadw

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