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Cof Cymru: National Historic Assets of Wales · Wales

Derwlwyn Coppice Hillfort

Llanfyllin, Powys, Wales

The record

Designation
Scheduled monument
Site type
Hillfort
Period
Prehistoric
Date of designation
13 February 1996
Community
Llanfyllin
Unitary authority
Powys
Country
Wales
Coordinates (centre of the scheduled area)
52.77281, -3.26066
SAM number
MG228
Cadw record number
3323

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

Shown on 5 historical map sheets, the earliest the 1795 "To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most humbly inscribed by his obedient humble servant" (Llyfrgell Genedlaethol Cymru – The National Library of Wales).

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This record in Cadw's own full report ↗

Cadw's description

The following provides a general description of the Scheduled Ancient Monument.

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. Derwlwyn Coppice Hillfort is a substantial trapezoidal earthwork enclosure situated at the top of a spur and is lightly wooded. The interior is gently sloping and appears to contact scarps and terraces which could be the positions of house sites. A well-preserved ditch some 2m deep runs around the site on the south, west and east and the bank lies within, and is strongest on the east and west. On the two long sides it is slight, an enhancement of the natural slope. On the east, is a second outer bank cutting off the tip of the spur.

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.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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