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HER:  Clwyd Powys 1898 (None)
NMR:  SO 18 NE 19 (306178)
SM:  MG136(POW)
NGR:  SO18018954
X:  318010  Y:  289540  (OSGB36)
Wooded, small, D-shaped hillslope site on steep NW-facing slopes above Afon Miwl to N. One of a cluster of mostly small forts between The Mule watercourse, a tributary of the River Severn, and the Kerry Ridgeway at Kerry. Lies within Sibwll Wood. Very steep or steep surrounding slopes. Overlooked from the SE. Sub-rectangular/oval measuring 44m by 36m with internal area 0.13ha. Single bank and ditch with counterscarp bank on the NE and NW sides, entrance a simple gap on NW. On 1st Ed. OS map (1886). Few investigations. Undated.
Citizen Science:  ✗
Reliability of Data:  Confirmed
Reliability of Interpretation:  Confirmed
X:  -357246  Y:  6890594  (EPSG: 3857)
Longitude:  -3.209198366379772  Latitude:  52.49755153984162  (EPSG:4326)
Country:  Wales
Current County or Unitary Authority:  Powys
Historic County:  Montgomeryshire
Current Parish/Community/Council/Townland:  Kerry
Condition unknown.
| Extant   | ✓ |
| Cropmark   | ✗ |
| Likely Destroyed   | ✗ |
Lies within Sibwll Wood.
| Woodland   | ✓ |
| Commercial Forestry Plantation   | ✗ |
| Parkland   | ✗ |
| Pasture (Grazing)   | ✗ |
| Arable   | ✗ |
| Scrub/Bracken   | ✓ |
| Bare Outcrop   | ✗ |
| Heather/Moorland   | ✗ |
| Heath   | ✗ |
| Built-up   | ✗ |
| Coastal Grassland   | ✗ |
| Other   | ✗ |
Small, D-shaped hillslope site on steep NW-facing slopes above Afon Miwl to N. One of a cluster of mostly small forts between The Mule watercourse, a tributary of the River Severn, and the Kerry Ridgeway. Very steep or 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:  Hillslope
| North   | ✗ |
| Northeast   | ✗ |
| East   | ✗ |
| Southeast   | ✗ |
| South   | ✗ |
| Southwest   | ✗ |
| West   | ✗ |
| Northwest   | ✓ |
| Level   | ✗ |
Altitude:  250.0m
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 (1886). Detailed CPAT survey 1987. CPAT Montgomeryshire Small enclosures project 1990-97.
| 1st Identified Map Depiction (1886):   | OS map. |
| Other (1987):   | CPAT detailed survey. |
| Other (None):   | CPAT Montgomeryshire Small enclosures project. |
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   | ✗ |
None
| APs Not Checked   | ✓ |
| None   | ✗ |
| Roundhouses   | ✗ |
| Rectangular Structures   | ✗ |
| Pits   | ✗ |
| Postholes   | ✗ |
| Roads/Tracks   | ✗ |
| Other   | ✗ |
Simple NW entrance.
| 1:   | None |
| 2:   | None |
Guard Chambers:  ✗
Chevaux de Frise:  ✗
| 1. Simple Gap (North west):   | None |
Single bank and ditch with counterscarp bank on the NE and NW sides.
| Area 1:   | 0.13ha. |
| Total:   | 0.13ha. |
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   | ✗ |
Counterscarp bank on the NE and NW sides.
| 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 |
Royal Commission on the Ancient and Historical Monuments and Constructions in Wales and Monmouthshire, 1911. An Inventory of the Ancient Monuments in Wales and Monmouthshire, I, County of Montgomery, No. 284, London: HMSO.
Silvester, R.J. and Britnell, W.J. 1993. Montgomeryshire small enclosures project. Summary Report 1993, CPAT Report No 80, Welshpool, Clwyd-Powys Archaeological Trust.
Spurgeon, C.J. 1972. Enclosures of Iron Age type in the Upper Severn Basin, In Lynch, F. and Burgess, C. (eds.) 1972, Prehistoric man in Wales and the West, 332, 22, Bath: Adams and Dart.
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