Atlas of Hillforts of Britain and Ireland

WA1968 Castell Coch, Tremynydd, Pembrokeshire (Castell Coch, Aberdinas)

Satellite Imagery

Satellite Imagery

HER:  Dyfed 2734 (None)

NMR:  SM 73 SE 2 (305401)

SM:  PE391(PEM)

NGR:  SM 7754 3035

X:  177540  Y:  230350  (OSGB36)

Summary

Coastal promontory fort sited on eroded, rocky, W-facing promontory along the coast from Caer Aber-pwll fort (Atlas No 1973), dominating the coast to Penllechwen and St David's. Bays of Aberdinas to N and Port Tre-wen to S. High sea cliffs to N, S, and W, fairly level landward to coastal plateau on E. Measures c. 56m N-S, reduced by recent quarrying to c. 22m E-W. Two curving banks with ditch cross the neck of the promontory on E for c. 70m from each cliff top and are angled upon central E-facing entrance which entered by a, probably modern, part rock-cut track. Inner bank to over 2m above ditch to S of entrance Outer bank has berm and is less. Both banks slighter to N. Three lines of rampart S of entrance were recorded by Ordnance Survey 1966. Cliff erosion taking both ends of bank. Under coastal grassland. On 1st Ed. OS map (1889). Minimal investigations, undated.

Status

Citizen Science:  ✗

Reliability of Data:  Confirmed

Reliability of Interpretation:  Confirmed

Location

X:  -582982  Y:  6786948  (EPSG: 3857)

Longitude:  -5.237019899620559  Latitude:  51.92706245401143  (EPSG:4326)

Country:  Wales

Current County or Unitary Authority:  Pembrokeshire

Historic County:  Pembrokeshire

Current Parish/Community/Council/Townland:  St Davids and the Cathedral Close

Monument Condition

Cliff erosion taking both ends of bank. Pembrokeshire Coast Path affects site.

Condition:
Extant   ✓
Cropmark   ✗
Likely Destroyed   ✗

Land Use

Coastal grassland and bare rock.

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

Coastal promontory fort sited on eroded, rocky, W-facing promontory, dominating the coast to Penllechwen and St David's. High sea cliffs to N, S, and W, fairly level landward to coastal plateau on E.

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:  Coastal headland

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

Altitude:  45.0m

Boundary

N/A


Dating Evidence

None

Reliability:  D - None

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:No related records

Investigation History

On 1st Ed. OS map (1889). Field Observation OS 1966. Field Observation AMB 1976. Field Observation DAT 1993, 1996. Field Observation CADW 1995. Cambria Archaeology defended enclosures survey 2006-2007.

Investigations:
1st Identified Map Depiction (1889):   OS map.
Other (1966):   Field observation OS.
Other (1976):   Field observation AMB.
Other (None):   Field observation DAT.
Other (None):   Cambria Archaeology defended enclosures survey

Interior Features

None

Water Source

Stream 0.6km outside fort.

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

Surface

None

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

None

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

Central E-facing entrance which entered by a, probably modern, part rock-cut track.

Total Number of Breaks Through Ramparts:  
1:   None

Number of Possible Original Entrances:  
2:   None

Guard Chambers:  ✗

Chevaux de Frise:  ✗

Entrances:
1. Simple Gap (East):   None

Enclosing Works

Two curving banks with ditch cross the neck of the promontory on E for c. 70m from each cliff top to N and S. Inner bank to over 2m above ditch to S of entrance Outer bank has berm and is less. Both banks slighter to N. Three lines of rampart S of entrance were recorded by Ordnance Survey 1966.

Enclosed Area:
Area 1:   0.14ha.
Total:   0.14ha.

Total Footprint Area:  Noneha.

Ramparts

None

Multi-period Enclosure System:
✗   None

Ramparts Form a Continuous Circuit:
✗   Three lines of rampart S of entrance were recorded by Ordnance Survey 1966.

Number of Ramparts:  
NE Quadrant:   2
SE Quadrant:   2
SW Quadrant:   0
NW Quadrant:   0
Total:   2

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

Outer bank has berm.

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:  2

Annex:
✗   None

References

Crossley, D.W. 1963. List of Hill-Forts and other earthworks in Pembrokeshire, Bull Board Celtic Stud, 20, 175.

Murphy, K., Ramsey, R., Poucher, P. and Page, M. 2007. A Survey of Defended Enclosures in Pembrokeshire, 2006-2007: Gazetteer of Ordnance Survey Grid Squares SM73, SM83 and SM93, Cambria Archaeology Report No. 2007/01, Project Record No. 54269, Llandeilo: Cambria Archaeology.

RCAMWM 1925. An inventory of the ancient monuments in Wales and Monmouthshire, VII, County of Pembroke, London: HMSO, No. 946.



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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