LiDAR 1m DTM Hillshade
Satellite Imagery
LiDAR 1m DTM Hillshade
Satellite Imagery
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HER: Clwyd Powys 905 (None)
NMR: SO 01 NE (305680)
SM: None
NGR: SO08901930
X: 308816 Y: 219199 (OSGB36)
High, univallate, hillslope fort located at the top of E-facing slope on a spur off Allt Lwyd and above Nant Tarthwynni at Talybony-on-Usk. Steep slopes to N down to Nant Tarthwynn, but generally moderately sloping. Commanding views down valley to E and W. Smaller and higher Nant Tarthwynni West hillslope fort (Atlas No. 1194) lies c. 60m to SW. Internal area 0.38ha. Defined by the vestiges of a earth and stone bank to 1.6m high forming a sub-circular inner enclosure c. 69m N-S and 70m E-W, with ditch around uphill side to c. 0.4m deep. the bank reduced to a scarp in places. Possibly because the ground is so steep the defences on N side not pronounced. E part defined by a terraced cut with no obvious bank or ditch; W part has a small bank on the top of the terraced cut. As the bank turns towards the S it becomes more pronounced. Roughly concentric bank, c. 1.5m high, and ditch, widely-spaced at c. 12m-26m from inner enclosure, sited about its S perimeter, in one way forming an outer enclosure or possible annexe. E-facing downslope entrance. Here bank to 1.5m high and ditch visible on W and part of S side to c .0.6m deep. Possible outlying bank within forestry c. 60m-70m to S of outer enclosure. S three-quarters within a forestry plantation. N quarter lies on the open common. Minimal investigations, undated.
Citizen Science: ✗
Reliability of Data: Confirmed
Reliability of Interpretation: Confirmed
X: -370211 Y: 6775546 (EPSG: 3857)
Longitude: -3.325657547136131 Latitude: 51.863854110050504 (EPSG:4326)
Country: Wales
Current County or Unitary Authority: Powys
Historic County: Brecknockshire
Current Parish/Community/Council/Townland: Talybont-on-Usk
Badly damaged by forestry operations in 1990.
| Extant | ✓ |
| Cropmark | ✗ |
| Likely Destroyed | ✗ |
Forestry Commission plantation. Three-quarters of site within forestry plantation, quarter on open common moorland.
| Woodland | ✗ |
| Commercial Forestry Plantation | ✓ |
| Parkland | ✗ |
| Pasture (Grazing) | ✗ |
| Arable | ✗ |
| Scrub/Bracken | ✗ |
| Bare Outcrop | ✗ |
| Heather/Moorland | ✓ |
| Heath | ✗ |
| Built-up | ✗ |
| Coastal Grassland | ✗ |
| Other | ✗ |
High, univallate, hillslope fort located at the top of E-facing slope on a spur off Allt Lwyd and above Nant Tarthwynni. Steep slopes to N down to Nant Tarthwynn, but generally moderately sloping. Commanding views down valley to E and W.
| 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: Hillslope
| North | ✓ |
| Northeast | ✗ |
| East | ✗ |
| Southeast | ✗ |
| South | ✗ |
| Southwest | ✗ |
| West | ✗ |
| Northwest | ✗ |
| Level | ✗ |
Altitude: 426.0m
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 |
RCAHMW investigation 1980. CPAT defended enclosures survey 2006-2007.
| Other (1980): | RCAHMW investigation. |
| Other (None): | CPAT 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 | ✗ |
Simple gap entrance to inner enclosure.
| 1: | None |
| 2: | None |
Guard Chambers: ✗
Chevaux de Frise: ✗
| 1. Simple Gap (East): | None |
Defined by the vestiges of a earth and stone bank forming a sub-circular inner enclosure c. 69m N-S and 70m E-W, with ditch around uphill side. the bank reduced to a scarp in places. Roughly concentric bank, c. 1.5m high, and ditch, widely-spaced about its S perimeter, in one way forming an outer enclosure or possible annexe. Possibly because the ground is so steep the defences on N side not pronounced. E part defined by a terraced cut with no obvious bank or ditch; W part has a small bank on the top of the terraced cut. As the bank turns towards the S it becomes more pronounced.
| Area 1: | 0.38ha. |
| Total: | 0.38ha. |
Total Footprint Area: Noneha.
None
| ✗ | None |
| ✓ | Inner enclosure forms discontinuous circuit. Roughly concentric bank, c. 1.5m high, and ditch, widely-spaced about its S perimeter, in one way forming an outer enclosure or possible annexe and not included in quadrants |
| 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 | ✗ |
Earth and stone rampart.
| 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: 2
| ✓ | Roughly concentric bank, c. 1.5m high, and ditch, widely-spaced about its S perimeter, in one way forming an outer enclosure or possible annexe. |
Savory, H.N. 1954. List of hill-forts and other earthworks in Wales and Monmouthshire. Additions and corrections to Sections I-III, Bull Board Celtic Stud, 15 (1952-54), 230.
Silvester, B. 2007. The Clwyd-Powys Archaeological Trust. Defended enclosures in Brecknock, CPAT Report No 859, Welshpool: CPAT.
RCAHMW 1986. An inventory of the ancient monuments in Brecknock (Brycheiniog). The Prehistoric and Roman monuments, Vol 1, Part 2, Hill-forts and Roman remains, HF 23, London: HMSO.
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