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HER:  Dyfed 564 (None)
NMR:  SR 99 NW (305415)
SM:  PE166(PEM)
NGR:  SR 9152 9840
X:  191520  Y:  198400  (OSGB36)
Possible, bivallate, contour hillfort located on crest of rounded knoll at Castlemartin. Moderate surrounding slopes. Often thought of as medieval site, an earlier enclosure is possible as occupies suitable site and despite mutilation, banks rise to 1m above interior and c. 4m above ditch. Sub-oval in shape measuring c. 60m by 70m with internal area c. 0.5ha. Surrounded by bank and ditch, latter as slight depression. Levelled on E side, where possible entrance. Possible second bank c. 20m distant from concentric with inner bank on E side. Ploughed down to N and S and built over on E. Concentric field boundary outside this bank possible third line. Improved pasture with some scrub on banks. Military installation on N edge. On 1st Ed. OS map (1865). Minimal investigations, undated.
Citizen Science:  ✗
Reliability of Data:  Unconfirmed
Reliability of Interpretation:  Unconfirmed
X:  -558245  Y:  6736298  (EPSG: 3857)
Longitude:  -5.014800750721107  Latitude:  51.64560650093981  (EPSG:4326)
Country:  Wales
Current County or Unitary Authority:  Pembrokeshire
Historic County:  Pembrokeshire
Current Parish/Community/Council/Townland:  Castlemartin
Mutilated and some banks lost to plough.
| Extant   | ✓ |
| Cropmark   | ✗ |
| Likely Destroyed   | ✗ |
Military installation on N edge. Improved pasture with some scrub on banks.
| Woodland   | ✗ |
| Commercial Forestry Plantation   | ✗ |
| Parkland   | ✗ |
| Pasture (Grazing)   | ✓ |
| Arable   | ✗ |
| Scrub/Bracken   | ✓ |
| Bare Outcrop   | ✗ |
| Heather/Moorland   | ✗ |
| Heath   | ✗ |
| Built-up   | ✗ |
| Coastal Grassland   | ✗ |
| Other   | ✓ |
Possible, bivallate, contour hillfort located on crest of rounded knoll at Castlemartin. Surrounding slopes moderate.
| 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:  Hill top
| North   | ✗ |
| Northeast   | ✗ |
| East   | ✗ |
| Southeast   | ✗ |
| South   | ✗ |
| Southwest   | ✗ |
| West   | ✗ |
| Northwest   | ✗ |
| Level   | ✓ |
Altitude:  55.0m
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:   | Possible medieval site. Military installation on N edge. |
On 1st Ed. OS map (1865). Cambria Archaeology defended enclosures survey 2006-2007. Field Observation OS 1965. Field Observation AMB 1981. Field Observation CADW 1993.
| 1st Identified Map Depiction (1865):   | OS map. |
| Other (1965):   | Field observation OS. |
| Other (1981):   | Field observation AMB. |
| Other (1993):   | Field observation CADW. |
| Other (None):   | Cambria Archaeology defended enclosures survey. |
None
None
| 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   | ✗ |
Levelled on E side, where possible entrance, simple gap.
| 1:   | None |
| 2:   | Conjecture only. |
Guard Chambers:  ✗
Chevaux de Frise:  ✗
| 1. Simple Gap (East):   | Type conjecture. |
Surrounded by bank and ditch, latter as slight depression. Levelled on E side, where possible entrance. Possible second bank c. 20m distant from concentric with inner bank on E side. Ploughed down to N and S and built over on E. Concentric field boundary outside this bank possible third line.
| Area 1:   | 0.5ha. |
| Total:   | 0.5ha. |
Total Footprint Area:  Noneha.
None
| ✗   | None |
| ✓   | Possible second bank c. 20m distant from concentric with inner bank on E side. Ploughed down to N and S and built over on E. Concentric field boundary outside this bank possible third line. Not included in quadrants. |
| NE Quadrant:   | 1 |
| SE Quadrant:   | 1 |
| SW Quadrant:   | 1 |
| NW Quadrant:   | 1 |
| Total:   | 1 |
| Partial Univallate   | ✗ |
| Univallate   | ✓ |
| Partial Bivallate   | ✗ |
| Bivallate   | ✗ |
| Partial Multivallate   | ✗ |
| Multivallate   | ✗ |
| Unknown   | ✗ |
| Partial Univallate   | ✗ |
| Univallate   | ✗ |
| Partial Bivallate   | ✗ |
| Bivallate   | ✗ |
| Partial Multivallate   | ✗ |
| Multivallate   | ✗ |
None
| 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 |
| ✓   | Slight depression to outer of inner bank. |
Number of Ditches:  1
| ✗   | None |
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 SR89, SR99, SS09 and SS19, Cambria Archaeology Report No. 2007/01, Project Record No. 54269, Llandeilo: Cambria Archaeology.
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