Ancient Monuments

History on the Ground

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Pen-llys Hillfort

A Scheduled Monument in Llanfihangel, Powys

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Latitude: 52.7255 / 52°43'31"N

Longitude: -3.3263 / 3°19'34"W

OS Eastings: 310525

OS Northings: 315027

OS Grid: SJ105150

Mapcode National: GBR 9R.1CQX

Mapcode Global: WH796.WR7G

Entry Name: Pen-llys Hillfort

Scheduled Date: 11 October 1999

Source: Cadw

Source ID: 3869

Cadw Legacy ID: MG230

Schedule Class: Defence

Category: Hillfort

Period: Prehistoric

County: Powys

Community: Llanfihangel

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 Iocated 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. Pen Llys is a sub-circular enclosure with a single bank on high ground and steep approaches on all sides serve the gentler northwest, the probable site of the entrance. The bank is used as a field bank with a surmounting fence on north, east and south, and there is a fenced enclosure on the south west, with another surrounding evergreen trees on the west. Both these enclosures are outside the site itself which has a grassed interior used for pasture. Trees cover the bank on the north, where the preservation of the earthwork is good, the outer bank discernible as a level scarped area. Elsewhere the defences have a lighter tree cover. 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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