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HER:  Dyfed 5810 (None)
NMR:  SM 91 SW 1 (305260)
SM:  PE215(PEM)
NGR:  SM 9220 1310
X:  192200  Y:  213100  (OSGB36)
Inland promontory fort located in Denant Wood on SE-facing promontory at confluence of Merlin's Brook, which flows into the Western Cleddau at Haverfordwest, and stream flowing from W. Steep slopes for 20m to wooded stream valleys to NE, E and S, moderate along spur to W and NW. Triangular-shaped sloping interior measures c. 94m SE-NW by c. 50m, with area c. 0.5ha. Single, but impressive, rampart cuts off promontory for 55m on approachable W and NW, rising to 1.6m above interior and 6m above base of ditch, with 1m high counterscarp. Ramparts curves around for short distance at either end. Position of entrance uncertain, but Ordnance Survey put it at S end of rampart before steep slope. Densely wooded. On 1st Ed. OS map (1889-1890). Minimal investigations, undated.
Citizen Science:  ✗
Reliability of Data:  Confirmed
Reliability of Interpretation:  Confirmed
X:  -558129  Y:  6760057  (EPSG: 3857)
Longitude:  -5.0137538226479705  Latitude:  51.777848252858554  (EPSG:4326)
Country:  Wales
Current County or Unitary Authority:  Pembrokeshire
Historic County:  Pembrokeshire
Current Parish/Community/Council/Townland:  Tiers Cross
Substantial rampart.
| Extant   | ✓ |
| Cropmark   | ✗ |
| Likely Destroyed   | ✗ |
Dense woodland.
| Woodland   | ✓ |
| Commercial Forestry Plantation   | ✗ |
| Parkland   | ✗ |
| Pasture (Grazing)   | ✗ |
| Arable   | ✗ |
| Scrub/Bracken   | ✗ |
| Bare Outcrop   | ✗ |
| Heather/Moorland   | ✗ |
| Heath   | ✗ |
| Built-up   | ✗ |
| Coastal Grassland   | ✗ |
| Other   | ✗ |
Inland promontory fort located in Denant Wood on SE-facing promontory at confluence of Merlin's Brook, which flows into the Western Cleddau at Haverfordwest, and stream flowing from W. Wooded stream valleys to E, S and W, moderate along spur to NW.
| 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:  Spur
| North   | ✗ |
| Northeast   | ✗ |
| East   | ✗ |
| Southeast   | ✓ |
| South   | ✗ |
| Southwest   | ✗ |
| West   | ✗ |
| Northwest   | ✗ |
| Level   | ✗ |
Altitude:  40.0m
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:   | None |
On 1st Ed. OS map (1889-1890). Field Observation OS 1965, 1975 Field Observation AMB 1981. Field Observation CADW 1991, 2002. Cambria Archaeology defended enclosures survey 2006-2007.
| Other (1981):   | Field observation AMB. |
| 1st Identified Map Depiction (None):   | OS map. |
| Other (None):   | Field Observation OS |
| Other (None):   | Field observation CADW. |
| Other (None):   | Cambria Archaeology defended enclosures survey. |
None
Stream 0.01km 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   | ✗ |
Position of entrance uncertain, but Ordnance Survey suggest at S end of rampart before steep slope.
| 1:   | None |
| 2:   | Position unclear. |
Guard Chambers:  ✗
Chevaux de Frise:  ✗
| 1. Simple Gap (South east):   | None |
Single, but impressive, rampart cuts off promontory for 55m on approachable W and NW, rising to 1.6m above interior and 6m above base of ditch, with 1m high counterscarp. Ramparts curves around for short distance at either end.
| Area 1:   | 0.5ha. |
| Total:   | 0.5ha. |
Total Footprint Area:  Noneha.
None
| ✗   | None |
| ✗   | None |
| NE Quadrant:   | 0 |
| SE Quadrant:   | 0 |
| 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   | ✗ |
1m high counterscarp.
| 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 |
| ✓   | None |
Number of Ditches:  1
| ✗   | None |
Crossley, D.W. 1963. List of Hill-Forts and other earthworks in Pembrokeshire, Bull Board Celtic Stud, 20, 180.
Murphy, K., Ramsey, R., Poucher, P. and Page, M. 2007. A SURVEY OF DEFENDED ENCLOSURES IN PEMBROKESHIRE, 2006-07: GAZETTEER OF ORDNANCE SURVEY GRID SQUARE SN71, SN81 and SN91, 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. 1106.
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