LiDAR 1m DTM Hillshade
Satellite Imagery
LiDAR 1m DTM Hillshade
Satellite Imagery
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HER: Gwynedd 203 (None)
NMR: SH 45 SE 6 (95338)
SM: CN115
NGR: SH45005070
X: 245000 Y: 350700 (OSGB36)
Contour hillfort located on rounded ENE-WSW hill top ridge above headwaters of Afon Desach to S and W, N Llyn Peninsula. Steep surrounding slopes. Traces of inner bank and ditch with slight counterscarp bank and additional earthworks where the line crosses the ridge. Banks now heaps of earth and small rubble. Ditch, obliterated in S has elsewhere depth of c. 1m to nearly 2m from crest of the bank, enclosing 0.57ha. On E, two additional ramparts cross the ridge. Outer 6m wide, 0.9m high; inner 4.5m wide and 0.6m high. Entrance on W is simple gap. Pasture interior, scrub on ramparts. Damaged by ploughing and possibly unfinished. On 1st Ed. OS map (1889). Minimal investigations, undated.
Citizen Science: ✗
Reliability of Data: Confirmed
Reliability of Interpretation: Confirmed
X: -480110 Y: 6988744 (EPSG: 3857)
Longitude: -4.312898000868408 Latitude: 53.03105061810308 (EPSG:4326)
Country: Wales
Current County or Unitary Authority: Gwynedd
Historic County: Caernarfonshire
Current Parish/Community/Council/Townland: Clynnog
Damaged by ploughing.
| Extant | ✓ |
| Cropmark | ✗ |
| Likely Destroyed | ✗ |
Pasture interior, scrub on ramparts.
| Woodland | ✗ |
| Commercial Forestry Plantation | ✗ |
| Parkland | ✗ |
| Pasture (Grazing) | ✓ |
| Arable | ✗ |
| Scrub/Bracken | ✓ |
| Bare Outcrop | ✗ |
| Heather/Moorland | ✗ |
| Heath | ✗ |
| Built-up | ✗ |
| Coastal Grassland | ✗ |
| Other | ✗ |
Contour hillfort located on prominentr ounded ENE-WSW hill top ridge above headwaters of Afon Desach to S and W, N Llyn Peninsula. Steep surrounding slopes.
| 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 ridge
| North | ✗ |
| Northeast | ✗ |
| East | ✗ |
| Southeast | ✗ |
| South | ✗ |
| Southwest | ✗ |
| West | ✗ |
| Northwest | ✗ |
| Level | ✓ |
Altitude: 221.0m
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). RCAHMW investigataion 1954. Ordnanace Survey observation 1972. GAT investigations 1987, 1992, 1993. GAT part survey 1972. GAT prehistoric defended enclosures survey 2005-2006.
| 1st Identified Map Depiction (1889): | OS map. |
| Other (1954): | RCAHMW investigation. |
| Other (1972): | GAT part survey. |
| Other (1972): | Ordnance Survey observation. |
| Other (None): | GAT investigations. |
| Other (None): | GAT prehistoric 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 | ✗ |
Entrance on W is simple gap.
| 1: | None |
| 2: | None |
Guard Chambers: ✗
Chevaux de Frise: ✗
| 1. Simple Gap (West): | None |
Traces of inner bank and ditch with slight counterscarp bank and additional earthworks where the line crosses the ridge. Banks now heaps of earth and small rubble. Ditch, obliterated in S has elsewhere depth of c. 1m to nearly 2m' from crest of the bank. On E, two additional ramparts cross the ridge. Outer is 20' wide, 3' high; inner 15' wide and 2' high.
| Area 1: | 0.57ha. |
| Total: | 0.57ha. |
Total Footprint Area: Noneha.
None
| ✗ | None |
| ✓ | None |
| NE Quadrant: | 3 |
| SE Quadrant: | 3 |
| SW Quadrant: | 1 |
| NW Quadrant: | 1 |
| Total: | 3 |
| Partial Univallate | ✓ |
| Univallate | ✗ |
| Partial Bivallate | ✗ |
| Bivallate | ✗ |
| Partial Multivallate | ✓ |
| Multivallate | ✗ |
| Unknown | ✗ |
| Partial Univallate | ✗ |
| Univallate | ✗ |
| Partial Bivallate | ✗ |
| Bivallate | ✗ |
| Partial Multivallate | ✗ |
| Multivallate | ✗ |
Earth and small stone banks. Slight counterscarp. Possibly unfinished.
| 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 |
RCAHMW 1960. Caernarvonshire Vol II: Central, A survey and inventory by the Royal Commission on Ancient and Historical Monuments in Wales and Monmouthshire, No 823, London: HMSO.
St. Joseph, J. K. 1961. Aerial Reconnaissance in Wales, Antiquity, 35, 264 Pl. XXXV.
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