Satellite Imagery
Satellite Imagery
HER: Dyfed 3006 (None)
NMR: SM 80 NW 28 (305356)
SM: PE416(PEM)
NGR: SM 8482 0603
X: 184820 Y: 206030 (OSGB36)
Large coastal promontory fort located on very prominent SSE-facing headland of Great Castle Head at the entrance to Milford Haven from the N and the entrance to Sandyhaven Pill. Longoar Bay directly to E. Sea cliffs to E, S and W, moderate slopes landward to N. Measures c. 160m N-S by up to 260m, with internal area 3.3ha. Defined by line of two ramparts, probably stone-walled, c. 150m long, with medial ditch cutting off the mainland on N. Simple gap entrance in middle of defences, but area disturbed. Modern structures include a lighthouse, possible folly and defence installations. Coastal grassland predominates, with gorse, bracken and scrub. ON 1ST ED. OS MAP (1874-1876). Minimal investigations, undated.
Citizen Science: ✗
Reliability of Data: Confirmed
Reliability of Interpretation: Confirmed
X: -569532 Y: 6748143 (EPSG: 3857)
Longitude: -5.116194313695261 Latitude: 51.711584944134216 (EPSG:4326)
Country: Wales
Current County or Unitary Authority: Pembrokeshire
Historic County: Pembrokeshire
Current Parish/Community/Council/Townland: St Ishmael's
Coastal erosion and disturbance. Pembrokeshire Coast Path AFFECTS SITE.
| Extant | ✓ |
| Cropmark | ✗ |
| Likely Destroyed | ✓ |
Coastal grassland, gorse, bracken and scrub. Modern structures include a lighthouse, possible folly and defence installations.
| Woodland | ✗ |
| Commercial Forestry Plantation | ✗ |
| Parkland | ✗ |
| Pasture (Grazing) | ✗ |
| Arable | ✗ |
| Scrub/Bracken | ✓ |
| Bare Outcrop | ✗ |
| Heather/Moorland | ✗ |
| Heath | ✗ |
| Built-up | ✓ |
| Coastal Grassland | ✓ |
| Other | ✓ |
Large coastal promontory fort located on very prominent SSE-facing headland of Great Castle Head at the entrance to Milford Haven from the N and the entrance to Sandyhaven Pill. Longoar Bay directly to E. Sea cliffs to E, S and W, moderate slopes landward to N.
| Contour Fort | ✗ |
| Partial Contour Fort | ✗ |
| Promontory Fort | ✓ |
| Hillslope Fort | ✗ |
| Level Terrain Fort | ✗ |
| Marsh Fort | ✗ |
| Multiple Enclosure Fort | ✗ |
| Hilltop | ✗ |
| Coastal Promontory | ✓ |
| Inland Promontory | ✗ |
| Valley Bottom | ✗ |
| Knoll/Hillock/Outcrop | ✗ |
| Ridge | ✗ |
| Cliff/Plateau-edge/Scarp | ✗ |
| Hillslope | ✗ |
| Lowland | ✗ |
| Spur | ✗ |
Dominant Topographic Feature: Coastal headland
| North | ✗ |
| Northeast | ✗ |
| East | ✗ |
| Southeast | ✓ |
| South | ✗ |
| Southwest | ✗ |
| West | ✗ |
| Northwest | ✗ |
| Level | ✗ |
Altitude: 23.0m
N/A
None
Reliability: D - None
| Pre 1200BC | ✗ |
| 1200BC - 800BC | ✗ |
| 800BC - 400BC | ✗ |
| 400BC - AD50 | ✗ |
| AD50 - AD400 | ✗ |
| AD400 - AD 800 | ✗ |
| Post AD800 | ✗ |
| Unknown | ✓ |
| Pre Hillfort: | None |
| Post Hillfort: | Modern structures in interior include a lighthouse, possible folly and defence installations. |
ON 1ST ED. MAP (1874-1876). Field Observation OS 1965, 1975. Field observation B. Allen and K. Murphy 1997. Field Observation DAT 1994, 2003. Field observation CADW 1991, 1999. Cambria Archaeology defended enclosures survey 2006-2007.
| Other (1965): | Field Observation OS. |
| Other (1997): | Field observation B. Allen and K. Murphy. |
| 1st Identified Map Depiction (None): | OS MAP. |
| Other (None): | Field observation CADW. |
| Other (None): | Field Observation DAT 1994, 2003. |
| Other (None): | Cambria Archaeology defended enclosures survey 2006-2007. |
None
Stream 0.4km outside fort.
| None | ✓ |
| Spring | ✗ |
| Stream | ✗ |
| Pool | ✗ |
| Flush | ✗ |
| Well | ✗ |
| Other | ✗ |
None
| No Known Features | ✓ |
| Round Stone Structures | ✗ |
| Rectangular Stone Structures | ✗ |
| Curvilinear Platforms | ✗ |
| Other Roundhouse Evidence | ✗ |
| Pits | ✗ |
| Quarry Hollows | ✗ |
| Other | ✗ |
None
| No Known Excavation | ✓ |
| Pits | ✗ |
| Postholes | ✗ |
| Roundhouses | ✗ |
| Rectangular Structures | ✗ |
| Roads/Tracks | ✗ |
| Quarry Hollows | ✗ |
| Other | ✗ |
| Nothing Found | ✗ |
None
| No Known Geophysics | ✓ |
| Pits | ✗ |
| Roundhouses | ✗ |
| Rectangular Structures | ✗ |
| Roads/Tracks | ✗ |
| Quarry Hollows | ✗ |
| Other | ✗ |
| Nothing Found | ✗ |
None
| No Known Finds | ✓ |
| Pottery | ✗ |
| Metal | ✗ |
| Metalworking | ✗ |
| Human Bones | ✗ |
| Animal Bones | ✗ |
| Lithics | ✗ |
| Environmental | ✗ |
| Other | ✗ |
None
| APs Not Checked | ✓ |
| None | ✗ |
| Roundhouses | ✗ |
| Rectangular Structures | ✗ |
| Pits | ✗ |
| Postholes | ✗ |
| Roads/Tracks | ✗ |
| Other | ✗ |
Simple gap entrance in middle of defences, but area disturbed.
| 1: | None |
| 2: | None |
Guard Chambers: ✗
Chevaux de Frise: ✗
| 1. Simple Gap (North): | None |
Defined by line of two ramparts, probably stone-walled, c. 150m long, with medial ditch cutting off the mainland on N.
| Area 1: | 3.3ha. |
| Total: | 3.3ha. |
Total Footprint Area: Noneha.
None
| ✗ | None |
| ✗ | None |
| NE Quadrant: | 2 |
| SE Quadrant: | 0 |
| SW Quadrant: | 0 |
| NW Quadrant: | 2 |
| Total: | 2 |
| Partial Univallate | ✗ |
| Univallate | ✗ |
| Partial Bivallate | ✓ |
| Bivallate | ✗ |
| Partial Multivallate | ✗ |
| Multivallate | ✗ |
| Unknown | ✗ |
| Partial Univallate | ✗ |
| Univallate | ✗ |
| Partial Bivallate | ✗ |
| Bivallate | ✗ |
| Partial Multivallate | ✗ |
| Multivallate | ✗ |
Probable stone-walled site.
| None | ✗ |
| Earthen Bank | ✗ |
| Stone Wall | ✓ |
| Rubble | ✗ |
| Wall-walk | ✗ |
| Evidence of Timber | ✗ |
| Vitrification | ✗ |
| Other Burning | ✗ |
| Palisade | ✗ |
| Counter Scarp Bank | ✗ |
| Berm | ✗ |
| Unfinished | ✗ |
| Other | ✗ |
None
| None | ✗ |
| Earthen Bank | ✗ |
| Stone Wall | ✗ |
| Murus Duplex | ✗ |
| Timber-framed | ✗ |
| Timber-laced | ✗ |
| Vitrification | ✗ |
| Other Burning | ✗ |
| Palisade | ✗ |
| Counter Scarp Bank | ✗ |
| Berm | ✗ |
| Unfinished | ✗ |
| No Known Excavation | ✓ |
| Other | ✗ |
| ✗ | None |
| ✓ | Medial ditch. |
Number of Ditches: 1
| ✗ | None |
Crossley, D.W. 1963. List of Hill-Forts and other earthworks in Pembrokeshire, Bull Board Celtic Stud, 20, 177.
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 SM70 and SM80, Cambria Archaeology Report No. 2007/01, Project Record No. 54269, Llandeilo: Cambria Archaeology.
RCAMWM 1925: Pembrokeshire Inventory No. 214; RCAMWM 1925. An inventory of the ancient monuments in Wales and Monmouthshire, VII, County of Pembroke, London: HMSO, No. 1047.
Atlas of Hillforts:
Wikidata:
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
Document Version 1.1