Atlas of Hillforts of Britain and Ireland

WA1686 Pen-y-Dinas, Llandudno, Caernarfonshire

LiDAR 1m DTM Hillshade

LiDAR 1m DTM Hillshade

Satellite Imagery

Satellite Imagery

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HER:  Gwynedd 637 (None)

NMR:  SH 78 SE 10 (303125)

SM:  CN039

NGR:  SH77908295

X:  277900  Y:  382950  (OSGB36)

Summary

Fine and complex coastal promontory fort on SE-facing limestone spur of Great Orme's Head overlooking Llandudno Bay. Steep to precipitous surrounding slopes to N, E and S, moderate to Great Orme plateau on W. Measures On NW three lines of works: outermost set at bottom of the slope leading up to the hillfort, and consist of two scarp slopes. Inner is a stone bank or wall built at the top of the slope Inner wall visible on most of W side, around the N side, and half way down the E side. Outer defence best on NW, and may continue round the hill as far as the limit of the inner bank, but no trace on NE. Face of large limestone slabs set on edge exposed in modern break, with precipitous crags and slopes on E and S sides. On NW outer face of the outer scarp dug away, probably in 19th. century, and stone revetment wall 1.8m high built against it to form sheep pens or paddocks. Field walls, paths and modern car park also damaged ramparts. Above a disturbed section to N inner wall broken though in two places by modern paths; most W of these could be an entrance. Possible 65 circular structures in interior, now seen as depressions among the limestone swallets. One of these investigated in 19th. century. Animal bones, limpet and snail shells, deer knife handle, lump of yellow ore, stones and pot boiler and Samian ware fragment found. Amateur excavation 1960 (P. Sirrett, unpublished, see Smith 2011). C14 date of 320-210 cal BC from animal bone (Smith 2011). Ruins of early nineteenth century dry-stone building referred to by RCAHMW inventory (1956), but no further details.

Status

Citizen Science:  ✗

Reliability of Data:  Confirmed

Reliability of Interpretation:  Confirmed

Location

X:  -426901  Y:  7044148  (EPSG: 3857)

Longitude:  -3.8349136863442626  Latitude:  53.32932649926326  (EPSG:4326)

Country:  Wales

Current County or Unitary Authority:  Conwy

Historic County:  Caernarfonshire

Current Parish/Community/Council/Townland:  Llandudno

Monument Condition

Much robbed and overgrown with visitor pressure. Setting affected by neighbouring ski run and car park.

Condition:
Extant   ✓
Cropmark   ✗
Likely Destroyed   ✓

Land Use

Rough coastal grassland and scrub.

Current Use:
Woodland   ✗
Commercial Forestry Plantation   ✗
Parkland   ✗
Pasture (Grazing)   ✗
Arable   ✗
Scrub/Bracken   ✓
Bare Outcrop   ✗
Heather/Moorland   ✗
Heath   ✗
Built-up   ✗
Coastal Grassland   ✓
Other   ✗

Landscape

Hillfort Type

Fine and complex coastal promontory fort on SE-facing limestone spur of Great Orme's Head overlooking Llandudno Bay. Steep to precipitous surrounding slopes to N, E and S, moderate to Great Orme plateau on W.

Type:
Contour Fort   ✗
Partial Contour Fort   ✗
Promontory Fort   ✓
Hillslope Fort   ✗
Level Terrain Fort   ✗
Marsh Fort   ✗
Multiple Enclosure Fort   ✗

Topographic Position

Position:
Hilltop   ✗
Coastal Promontory   ✓
Inland Promontory   ✗
Valley Bottom   ✗
Knoll/Hillock/Outcrop   ✗
Ridge   ✗
Cliff/Plateau-edge/Scarp   ✗
Hillslope   ✗
Lowland   ✗
Spur   ✓

Dominant Topographic Feature:  Spur

Aspect:
North   ✗
Northeast   ✗
East   ✗
Southeast   ✗
South   ✗
Southwest   ✗
West   ✗
Northwest   ✗
Level   ✓

Altitude:  121.0m

Boundary

N/A


Dating Evidence

C14 date of 320-210 (2 sigma) cal BC from animal bone (Smith 2011).

Reliability:  B - Medium

Principal Activity:
Pre 1200BC   ✗
1200BC - 800BC   ✗
800BC - 400BC   ✗
400BC - AD50   ✓
AD50 - AD400   ✗
AD400 - AD 800   ✗
Post AD800   ✗
Unknown   ✗

Other Activity:
Pre Hillfort:   None
Post Hillfort:   None

Evidence:
C14:   None

Investigation History

Plan by Bezant Lowe (1912). RCAHMW investigation 1948. Ordnance Survey observation 1969. GAT investigations 1969, 1988, 1992, 1993, 1995. GAT prehistoric defended enclosures survey 2004-2005. Amateur excavation 1960 (P. Sirrett, unpublished, see Smith 2011).

Investigations:
Other (1912):   Plan of Bezant Lowe (1912).
Other (1948):   RCAHMW investigation.
Excavation (1960):   None
Other (1969):   Ordnance Survey observation.
Other (1992):   Visited by Hillfort Study Group
Other (None):   GAT investigations.
Other (None):   GAT prehistoric defended enclosures survey.

Interior Features

Possible 65 circular structures in interior, now seen as depressions among the limestone swallets. Nineteenth century finds of animal bones, oyster, limpet and snail shells,clay sherd, deer knife handle, stones and pot boiler, lump of yellow ore and Samian ware fragment.

Water Source

Possible springs below site.

Source:
None   ✓
Spring   ✗
Stream   ✗
Pool   ✗
Flush   ✗
Well   ✗
Other   ✗

Surface

Possible 65 circular structures in interior, now seen as depressions among the limestone swallets.

Interior Features (Surface):
No Known Features   ✗
Round Stone Structures   ✗
Rectangular Stone Structures   ✗
Curvilinear Platforms   ✗
Other Roundhouse Evidence   ✓
Pits   ✗
Quarry Hollows   ✗
Other   ✗

Excavation

None

Interior Features (Excavation):
No Known Excavation   ✓
Pits   ✗
Postholes   ✗
Roundhouses   ✗
Rectangular Structures   ✗
Roads/Tracks   ✗
Quarry Hollows   ✗
Other   ✗
Nothing Found   ✗

Geophysics

None

Interior Features (Geophysics):
No Known Geophysics   ✓
Pits   ✗
Roundhouses   ✗
Rectangular Structures   ✗
Roads/Tracks   ✗
Quarry Hollows   ✗
Other   ✗
Nothing Found   ✗

Finds

Nineteenth century finds of animal bones, oyster, limpet and snail shells,clay sherd, deer knife handle, stones and pot boiler, lump of yellow ore and Samian ware fragment.

Interior (Finds):
No Known Finds   ✗
Pottery   ✓
Metal   ✗
Metalworking   ✓
Human Bones   ✗
Animal Bones   ✓
Lithics   ✗
Environmental   ✓
Other   ✗

Aerial

None

Interior Features (Aerial):
APs Not Checked   ✓
None   ✗
Roundhouses   ✗
Rectangular Structures   ✗
Pits   ✗
Postholes   ✗
Roads/Tracks   ✗
Other   ✗

Entrances

Although no original entrances defined, above a disturbed section to N, inner wall broken though in two places by modern paths; most W of these could be an entrance.

Total Number of Breaks Through Ramparts:  
3:   None

Number of Possible Original Entrances:  
2:   Possible site only.

Guard Chambers:  ✗

Chevaux de Frise:  ✗

Entrances:
1. Simple Gap (North):   Inner wall broken though in two places by modern paths; most W of these could be an entrance.

Enclosing Works

On NW three lines of defences: outermost set at bottom of the slope leading up to the hillfort, and consist of two scarp slopes. Inner defence is a stone bank or wall built at the top of the slope Inner wall visible on most of W side, around the N side, and half way down the E side. Outer defence best on NW, and may continue round the hill as far as the limit of the inner bank, but no trace on NE. Face of large limestone slabs set on edge exposed in modern break, with precipitous crags and slopes on E and S sides.

Enclosed Area:
Area 1:   2.0ha.
Total:   2.0ha.

Total Footprint Area:  Noneha.

Ramparts

None

Multi-period Enclosure System:
✗   None

Ramparts Form a Continuous Circuit:
✗   Precipitous slopes on E and S.

Number of Ramparts:  
NE Quadrant:   1
SE Quadrant:   0
SW Quadrant:   0
NW Quadrant:   3
Total:   3

Morphology

Current Morphology:
Partial Univallate   ✓
Univallate   ✗
Partial Bivallate   ✗
Bivallate   ✗
Partial Multivallate   ✓
Multivallate   ✗
Unknown   ✗

Detailed Morphology:
Partial Univallate   ✗
Univallate   ✗
Partial Bivallate   ✗
Bivallate   ✗
Partial Multivallate   ✗
Multivallate   ✗

Surface Evidence

Inner defence stone bank. Probable stone-walled site.

Enclosing Works (Surface):
None   ✗
Earthen Bank   ✗
Stone Wall   ✓
Rubble   ✗
Wall-walk   ✗
Evidence of Timber   ✗
Vitrification   ✗
Other Burning   ✗
Palisade   ✗
Counter Scarp Bank   ✗
Berm   ✗
Unfinished   ✗
Other   ✗

Excavated Evidence

None

Enclosing Works (Excavation):
None   ✗
Earthen Bank   ✗
Stone Wall   ✗
Murus Duplex   ✗
Timber-framed   ✗
Timber-laced   ✗
Vitrification   ✗
Other Burning   ✗
Palisade   ✗
Counter Scarp Bank   ✗
Berm   ✗
Unfinished   ✗
No Known Excavation   ✓
Other   ✗

Other

Gang Working:
✗   None

Ditches:
✓   None

Number of Ditches:  1

Annex:
✗   None

References

Muckle, P. 1993 Pen y Dinas Archaeological Survey, GAT Report No. 052, Bangor: Gwynedd Archaeological Trust.

RCAHMW 1956. Caernarvonshire Vol I: East, A survey and inventory by the Royal Commission on Ancient and Historical Monuments in Wales and Monmouthshire, No 367, London: HMSO.

Smith, G. , 2005 , A Survey of Prehistoric Defended Enclosures in North West Wales 2004-2005: West Conwy, Gwynedd (Arfon) and Anglesey, Bangor: Gwynedd Archaeological Trust.

Smith, G. 2011. Re-assessment of two hillforts in North Wales: Pen-y-Dinas, Llandudno, and Caer Seion, Conwy, Arch Wales, 51, 61-78.

Waddington, K. 2013. The Settlements of Northwest Wales: From the Late Bronze Age to the Early Medieval Period, Cardiff: University of Wales Press.



Terms of Use

This work is licensed under CC BY-SA 4.0 and should be cited as:

Lock, Gary and Ralston, Ian. 2024. Atlas of Hillforts of Britain and Ireland. Available at: https://hillforts.arch.ox.ac.uk


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