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HER:  Clwyd Powys 100722 (None)
NMR:  SJ 05 NE 1 (306616)
SM:  None
NGR:  SJ08055866
X:  308050  Y:  358660  (OSGB36)
Remains of contour hillfort located on rounded hillock above the Afon Clywedog where a stream enters the river at Cyffylliog. S slopes steep, elsewhere moderate to strong. Site probably ploughed-out on E side, hence horseshoe (semi-circular) shape, although possibly incomplete. Measures c. 76m diameter internally, and 114m overall, with c. 0.4ha enclosed. Defined by double bank and ditch, inner bank to c. 1.25m high and 7m wide and outer to c. 1m high and 2.5m wide. No entrance visible, but possibly ploughed-out on E. Rough grass interior, wooded banks. On 1st Ed. OS map (1874). Minimal investigations, undated.
Citizen Science:  ✗
Reliability of Data:  Confirmed
Reliability of Interpretation:  Confirmed
X:  -375741  Y:  7004697  (EPSG: 3857)
Longitude:  -3.375338537056116  Latitude:  53.11714926821302  (EPSG:4326)
Country:  Wales
Current County or Unitary Authority:  Denbighshire
Historic County:  Denbighshire
Current Parish/Community/Council/Townland:  Cyffylliog
Site probably ploughed-out on E side, hence horseshoe (semi-circular) shape.
| Extant   | ✓ |
| Cropmark   | ✗ |
| Likely Destroyed   | ✓ |
Rough grass interior, wooded banks. Hedge line on E.
| Woodland   | ✓ |
| Commercial Forestry Plantation   | ✗ |
| Parkland   | ✗ |
| Pasture (Grazing)   | ✓ |
| Arable   | ✗ |
| Scrub/Bracken   | ✓ |
| Bare Outcrop   | ✗ |
| Heather/Moorland   | ✗ |
| Heath   | ✗ |
| Built-up   | ✗ |
| Coastal Grassland   | ✗ |
| Other   | ✗ |
Remains of possible contour hillfort located on rounded hillock above the Afon Clywedog where a stream enters the river. S slopes steep, elsewhere moderate to strong.
| 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:  Hillock
| North   | ✗ |
| Northeast   | ✗ |
| East   | ✗ |
| Southeast   | ✗ |
| South   | ✗ |
| Southwest   | ✗ |
| West   | ✗ |
| Northwest   | ✗ |
| Level   | ✓ |
Altitude:  200.0m
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 (1874).
| 1st Identified Map Depiction (1874):   | OS map. |
None.
Stream 0.2km 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   | ✗ |
No entrance visible, but possibly ploughed-out on E.
| 0:   | None visible. |
| 2:   | Possibly ploughed-out on E. |
Guard Chambers:  ✗
Chevaux de Frise:  ✗
| 1. Simple Gap (East):   | Type estimated - possibly ploughed-out. |
Defined by double bank and ditch, inner bank to c. 1.25m high and 7m wide and outer to c. 1m high and 2.5m wide.
| Area 1:   | 0.4ha. |
| Total:   | 0.4ha. |
Total Footprint Area:  1.2ha.
None
| ✗   | Measures c. 76m diameter internally, and 114m overall. Areas estimated because of ploughed-out horseshoe shape of enclosure. |
| ✗   | Ploughed-out or incomplete on E side. |
| NE Quadrant:   | 0 |
| SE Quadrant:   | 0 |
| SW Quadrant:   | 2 |
| NW Quadrant:   | 2 |
| Total:   | 2 |
| Partial Univallate   | ✗ |
| Univallate   | ✗ |
| Partial Bivallate   | ✓ |
| Bivallate   | ✗ |
| Partial Multivallate   | ✗ |
| Multivallate   | ✗ |
| Unknown   | ✗ |
| Partial Univallate   | ✗ |
| Univallate   | ✗ |
| Partial Bivallate   | ✗ |
| Bivallate   | ✗ |
| Partial Multivallate   | ✗ |
| Multivallate   | ✗ |
Possibly incomplete.
| 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. No details of outer ditch - possibly buried feature? |
Number of Ditches:  1
| ✗   | None |
Davies, Canon Ellis 1929: The prehistoric and Roman remains of Denbighshire, Cardiff: William Lewis, 374.
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