LiDAR 1m DTM Hillshade
Satellite Imagery
LiDAR 1m DTM Hillshade
Satellite Imagery
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HER: Glamorgan Gwent 00619m (None)
NMR: ST 08 SE 1 (93037)
SM: GM065
NGR: ST06458320
X: 306450 Y: 183200 (OSGB36)
Large, multivallate, contour hillfort sited on a very prominent, rounded, summit of hill above the Afon Clun near its confluence with the Afon Ely. Steep surrounding slopes on S, moderate to strong elsewhere. Two close-set banks and ditches with counterscarp once existed for most of circuit, but most of well-preserved NE defences destroyed in 1960's and counterscarp and outer ditch mostly gone. On far S side outer bank absent and inner continued along crest of the steep slope and now levelled. Inturned SE entrance passage, c. 7.5m wide, through both banks which diverge to produce space of c. 0.3ha between. Counterscarp and ditch seem absent near entrance. Improved pasture. On 1st Ed. OS map (1874-5). Minimal investigations, undated.
Citizen Science: ✗
Reliability of Data: Confirmed
Reliability of Interpretation: Confirmed
X: -372958 Y: 6717352 (EPSG: 3857)
Longitude: -3.3503394467784946 Latitude: 51.53987341626298 (EPSG:4326)
Country: Wales
Current County or Unitary Authority: Rhondda Cynon Taff
Historic County: Glamorgan
Current Parish/Community/Council/Townland: Llantrisant
Much destroyed on NE in 1960's and S sides levelled. Counterscarp and outer ditch mostly gone.
| Extant | ✓ |
| Cropmark | ✗ |
| Likely Destroyed | ✓ |
Improved pasture.
| Woodland | ✗ |
| Commercial Forestry Plantation | ✗ |
| Parkland | ✗ |
| Pasture (Grazing) | ✓ |
| Arable | ✗ |
| Scrub/Bracken | ✗ |
| Bare Outcrop | ✗ |
| Heather/Moorland | ✗ |
| Heath | ✗ |
| Built-up | ✗ |
| Coastal Grassland | ✗ |
| Other | ✗ |
Large multivallate contour hillfort sited on a very prominent rounded hill summit above the Afon Clun near its confluence with the Afon Ely. Steep surrounding slopes on S, moderate to strong elsewhere.
| 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
| North | ✗ |
| Northeast | ✗ |
| East | ✗ |
| Southeast | ✗ |
| South | ✗ |
| Southwest | ✗ |
| West | ✗ |
| Northwest | ✗ |
| Level | ✓ |
Altitude: 167.0m
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 (1874-5). RCAHMW investigation 965. GGAT Prehistoric defended enclosures in Glamorgan survey 2005.
| Other (1965): | RCAHMW investigation. |
| Other (2005): | GGAT survey. |
| 1st Identified Map Depiction (None): | OS map. |
None
Stream 0.5km outside fort. Small pond in interior modern.
| 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 | ✗ |
Inturned SE entrance passage, c. 7.5m wide, through both banks which diverge to produce space of c. 0.3ha between. Counterscarp and ditch seem absent near entrance. Odd gaps through banks elsewhere modern.
| 5: | Odd gaps through banks. |
| 2: | None |
Guard Chambers: ✗
Chevaux de Frise: ✗
| 1. In-turned (South east): | Through both banks. |
| 1. Passage-way/Corridor (South east): | None |
Two close-set banks and ditches with counterscarp once existed for most of circuit, but well-preserved NE defences destroyed in 1960's and counterscarp and outer ditch mostly gone. On far S side outer bank absent and inner continued along crest of the steep slope and now levelled.
| Area 1: | 3.6ha. |
| Total: | 3.6ha. |
Total Footprint Area: Noneha.
None
| ✗ | None |
| ✓ | Outer defences on NE mostly destroyed, but existed before 1960's. |
| NE Quadrant: | 2 |
| SE Quadrant: | 2 |
| 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 | ✗ |
None
| 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 |
| ✓ | Outer ditch mostly gone. |
Number of Ditches: 2
| ✗ | None |
Gerrard, C., Wiggins, H., and Evans, E. 2006. Prehistoric defended enclosures in Glamorgan with recommendations for fieldwork: Year 3 Report, GGAT Report No. 2006/089, Project No. GGAT78, Swansea: GGAT.
RCAHMW 1976. An inventory of the ancient monuments in Glamorgan, Vol I: Pre-Norman, Part II The Iron Age and the Roman occupation, No. 672, Cardiff: HMSO.
Savory, H.N. 1949. List of hill-forts and other earthworks in Wales, Bull Board Celtic Stud, 13, 154.
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