LiDAR 1m DTM Hillshade
Satellite Imagery
LiDAR 1m DTM Hillshade
Satellite Imagery
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HER: Gwynedd 1061 (None)
NMR: SH 52 NE 7 (96521)
SM: ME123
NGR: SH59562867
X: 259547 Y: 328668 (OSGB36)
Craggy prominent contour hillfort located on summit of isolated ridge in the foothills of the Ardudwy Mountains above Llanfair and Cwm Bychan and the Afon Artro on a possible route through the Rhinogau. Surrounding slopes N and W very steep, S steep, E moderate to strong. Measures 70m N-S by 55m with internal area 0.31ha. Little remains, apart from foundations, c 1.8-2.4m wide, of a stone wall around the summit of Clogwyn Arllef. No ditch. Gap entrance on N end of E side, between two modern others on the E and NE, and approached below by ruinous walled track for c. 62m to E. small cairns within S interior and others outside. Rough upland pasture and bare rock. Most stone probably robbed for local walls. Minimal investigations, undated.
Citizen Science: ✗
Reliability of Data: Confirmed
Reliability of Interpretation: Confirmed
X: -454917 Y: 6952931 (EPSG: 3857)
Longitude: -4.086586724914197 Latitude: 52.83714615392401 (EPSG:4326)
Country: Wales
Current County or Unitary Authority: Gwynedd
Historic County: Merioneth
Current Parish/Community/Council/Townland: Llanbedr
Little remains of stone wall and most stone probably robbed for local walls.
| Extant | ✓ |
| Cropmark | ✗ |
| Likely Destroyed | ✓ |
Rough upland pasture and bare rock.
| Woodland | ✗ |
| Commercial Forestry Plantation | ✗ |
| Parkland | ✗ |
| Pasture (Grazing) | ✓ |
| Arable | ✗ |
| Scrub/Bracken | ✗ |
| Bare Outcrop | ✗ |
| Heather/Moorland | ✗ |
| Heath | ✗ |
| Built-up | ✗ |
| Coastal Grassland | ✗ |
| Other | ✗ |
Craggy prominent contour hillfort located on summit of isolated ridge in the foothills of the Ardudwy Mountains above Llanfair and Cwm Bychan and the Afon Artro on a possible route through the Rhinogau. Surrounding slopes N and W very steep, S steep,
| 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: Ridge
| North | ✗ |
| Northeast | ✗ |
| East | ✗ |
| Southeast | ✗ |
| South | ✗ |
| Southwest | ✗ |
| West | ✗ |
| Northwest | ✗ |
| Level | ✓ |
Altitude: 170.0m
N/A
None
Reliability: D - None
| Pre 1200BC | ✗ |
| 1200BC - 800BC | ✗ |
| 800BC - 400BC | ✗ |
| 400BC - AD50 | ✗ |
| AD50 - AD400 | ✗ |
| AD400 - AD 800 | ✗ |
| Post AD800 | ✗ |
| Unknown | ✓ |
| Pre Hillfort: | Two small cairns within S interior and others outside. |
| Post Hillfort: | None |
Ordnance Survey observation 1972. GAT investigation 1995. GAT Hut Settlement Survey 1998. GAT prehistoric defended enclosures survey 2005-2006.
| Other (1972): | Ordnance Survey observation. |
| Other (1985): | Visited by Hillfort Study Group |
| Other (1995): | GAT investigation. |
| Other (1998): | GAT Hut Settlement Survey 1998. |
| Other (None): | GAT prehistoric defended enclosures survey. |
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 | ✗ |
NO APPARENT FEATURES
| APs Not Checked | ✓ |
| None | ✗ |
| Roundhouses | ✗ |
| Rectangular Structures | ✗ |
| Pits | ✗ |
| Postholes | ✗ |
| Roads/Tracks | ✗ |
| Other | ✗ |
Gap entrance on N end of E side, between two modern others on the E and NE, and approached below by ruinous walled track for c. 62m to E.
| 3: | Estimate only. |
| 2: | None |
Guard Chambers: ✗
Chevaux de Frise: ✗
| 1. Simple Gap (East): | Approached below by ruinous walled track for c. 62m to E. |
Little remains, apart from foundations, circa 2m wide, of a stone wall. No ditch. 0.31ha.
| Area 1: | 0.31ha. |
| Total: | 0.31ha. |
Total Footprint Area: Noneha.
None
| ✗ | None |
| ✓ | None |
| 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 | ✗ |
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 |
Number of Ditches: 0
| ✗ | None |
Bowen E.G. and Gresham, C.A. 1967. History of Merioneth 1, Dolgellau, 166-7.
Smith, G. H. 1998 , Hut Circle Settlement Survey, Unpublished report, Bangor: Gwynedd Archaeological Trust.
Smith, G.H. 2006. A survey of prehistoric defended enclosures in north-west Wales 2005-2006: Gwynedd Dwyfor and Meirionnydd. Report No 634. Part I: Survey Report. Bangor: Gwynedd Archaeological Trust.
Waddington, K. 2013. The Settlements of Northwest Wales: From the Late Bronze Age to the Early Medieval Period, Cardiff: University of Wales Press.
Atlas of Hillforts:
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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