LiDAR 1m DTM Hillshade
Satellite Imagery
LiDAR 1m DTM Hillshade
Satellite Imagery
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HER: Clwyd Powys 100667 (None)
NMR: SH 95 SE 10 (303498)
SM: DE076
NGR: SH985520
X: 298500 Y: 352000 (OSGB36)
Partial contour hillfort sited on flat-topped hillock immediately above the Afon Alwen on Mynydd Hiraethog, Llanfihangel Glyn Myfyr. Moderate surrounding slopes, N and E less. Oval shape measuring c. 164m SE-NW by 84m, with internal area c. 1.4ha. Area defined by peripheral dry-stone field wall, probably modern, but traces of inner circuit of fort visible 15m within this field wall and possibly on SW. Traces of terracing, possibly part of rampart, on NE and NW. No ditch defined. Possible bank downslope on SW and W, 25m-30m from enclosure, but uncertain. No entrance defined. Possible circular structure or feature, c. 10m across, in interior. Improved pasture interior, scrubby surrounds. Vestiges only remain. Affected by farm buildings on SE and modern stone walls. On 1st Ed. OS map (1875). Minimal investigations, undated.
Citizen Science: ✗
Reliability of Data: Confirmed
Reliability of Interpretation: Confirmed
X: -391385 Y: 6993283 (EPSG: 3857)
Longitude: -3.5158737289485593 Latitude: 53.05556853179127 (EPSG:4326)
Country: Wales
Current County or Unitary Authority: Conwy
Historic County: Denbighshire
Current Parish/Community/Council/Townland: Llanfihangel Glyn Myfyr
Vestiges only remain. Affected by farm buildings on SE and modern stone walls.
| Extant | ✓ |
| Cropmark | ✗ |
| Likely Destroyed | ✓ |
Improved pasture interior, scrubby surrounds.
| Woodland | ✗ |
| Commercial Forestry Plantation | ✗ |
| Parkland | ✗ |
| Pasture (Grazing) | ✓ |
| Arable | ✗ |
| Scrub/Bracken | ✓ |
| Bare Outcrop | ✗ |
| Heather/Moorland | ✗ |
| Heath | ✗ |
| Built-up | ✗ |
| Coastal Grassland | ✗ |
| Other | ✗ |
Partial contour hillfort sited on flat-topped hillock immediately above the Afon Alwen on Mynydd Hiraethog. Moderate surrounding slopes, N and E less.
| 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: 290.0m
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 (1875).
| 1st Identified Map Depiction (1875): | OS MAP. |
Possible circular structure or feature, c. 10m across, in interior.
Afon Alwen directly below fort.
| None | ✓ |
| Spring | ✗ |
| Stream | ✗ |
| Pool | ✗ |
| Flush | ✗ |
| Well | ✗ |
| Other | ✗ |
Possible circular structure or feature, c. 10m across, in interior.
| 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 | ✗ |
None defined.
| 0: | None |
| 2: | None |
Guard Chambers: ✗
Chevaux de Frise: ✗
Area defined by peripheral dry-stone field wall, but traces of inner circuit of fort visible 15m within this field wall and possibly on SW. Traces of terracing, possibly part of rampart, on NE and NW. No ditch defined. Possible bank downslope on SW and W, 25m-30m from enclosure, but uncertain.
| Area 1: | 1.4ha. |
| Total: | 1.4ha. |
Total Footprint Area: Noneha.
None
| ✗ | None |
| ✓ | Traces only visible and quadrants estimated. |
| 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 | ✗ |
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 |
| ✗ | None visible. |
Number of Ditches: 0
| ✗ | None |
Davies, Canon Ellis 1929. The prehistoric and Roman remains of Denbighshire, Cardiff: William Lewis, 231.
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