Atlas of Hillforts of Britain and Ireland

WA1548 Old Castle Promontory Fort, Rhossili, Glamorgan

Satellite Imagery

Satellite Imagery

HER:  Glamorgan Gwent 00139w (None)

NMR:  SS 48 NW 6 (305473)

SM:  GM193

NGR:  SS40938798

X:  240930  Y:  187980  (OSGB36)

Summary

Badly damaged, small, N-facing coastal promontory fort dominating Rhossili Bay from the S on the Gower. N and W very steep surrounding sea cliffs, S and E moderate. Roughly D-shaped measuring c.100m NE-SW by 80m, enclosing 0.7ha, and defined by single semi-circular high bank with external ditch (to 10m total width) and to 2m high, with its straight back defined by the sea cliffs. Best preserved on E and S. Another short damaged length remains on the SW. Gap on SW, now to c. 20m wide, could be site of original entrance. Coastal grassland. Badly damaged by quarry. On 1st Ed. OS map (1879). Minimal investigations, undated.

Status

Citizen Science:  ✗

Reliability of Data:  Confirmed

Reliability of Interpretation:  Confirmed

Location

X:  -478296  Y:  6722415  (EPSG: 3857)

Longitude:  -4.296609319640377  Latitude:  51.56814944191959  (EPSG:4326)

Country:  Wales

Current County or Unitary Authority:  Swansea

Historic County:  Glamorgan

Current Parish/Community/Council/Townland:  Rhossili

Monument Condition

Badly damaged by quarry.

Condition:
Extant   ✓
Cropmark   ✗
Likely Destroyed   ✓

Land Use

Coastal grassland and some bare rock. Quarry.

Current Use:
Woodland   ✗
Commercial Forestry Plantation   ✗
Parkland   ✗
Pasture (Grazing)   ✗
Arable   ✗
Scrub/Bracken   ✗
Bare Outcrop   ✗
Heather/Moorland   ✗
Heath   ✗
Built-up   ✗
Coastal Grassland   ✓
Other   ✓

Landscape

Hillfort Type

Badly damaged small N-facing coastal promontory fort dominating Rhossili Bay from the S on the Gower. N and W very steep surrounding sea cliffs, S and E moderate.

Type:
Contour Fort   ✗
Partial Contour Fort   ✗
Promontory Fort   ✓
Hillslope Fort   ✗
Level Terrain Fort   ✗
Marsh Fort   ✗
Multiple Enclosure Fort   ✗

Topographic Position

Position:
Hilltop   ✗
Coastal Promontory   ✓
Inland Promontory   ✗
Valley Bottom   ✗
Knoll/Hillock/Outcrop   ✗
Ridge   ✗
Cliff/Plateau-edge/Scarp   ✗
Hillslope   ✗
Lowland   ✗
Spur   ✗

Dominant Topographic Feature:  Coastal headland

Aspect:
North   ✗
Northeast   ✗
East   ✗
Southeast   ✗
South   ✗
Southwest   ✗
West   ✗
Northwest   ✗
Level   ✓

Altitude:  50.0m

Boundary

N/A


Dating Evidence

None

Reliability:  D - None

Principal Activity:
Pre 1200BC   ✗
1200BC - 800BC   ✗
800BC - 400BC   ✗
400BC - AD50   ✗
AD50 - AD400   ✗
AD400 - AD 800   ✗
Post AD800   ✗
Unknown   ✓

Other Activity:
Pre Hillfort:   None
Post Hillfort:   None

Evidence:No related records

Investigation History

On 1st Ed. OS map (1879). RCAHMW investigation 1959. GGAT Prehistoric defended enclosures in Glamorgan survey 2005.

Investigations:
1st Identified Map Depiction (1879):   OS map
Other (1959):   RCAHMW investigation.
Other (1986):   Visited by Hillfort Study Group
Other (2005):   GGAT Prehistoric defended enclosures in Glamorgan survey.

Interior Features

None

Water Source

None

Source:
None   ✓
Spring   ✗
Stream   ✗
Pool   ✗
Flush   ✗
Well   ✗
Other   ✗

Surface

None

Interior Features (Surface):
No Known Features   ✓
Round Stone Structures   ✗
Rectangular Stone Structures   ✗
Curvilinear Platforms   ✗
Other Roundhouse Evidence   ✗
Pits   ✗
Quarry Hollows   ✗
Other   ✗

Excavation

None

Interior Features (Excavation):
No Known Excavation   ✓
Pits   ✗
Postholes   ✗
Roundhouses   ✗
Rectangular Structures   ✗
Roads/Tracks   ✗
Quarry Hollows   ✗
Other   ✗
Nothing Found   ✗

Geophysics

None

Interior Features (Geophysics):
No Known Geophysics   ✓
Pits   ✗
Roundhouses   ✗
Rectangular Structures   ✗
Roads/Tracks   ✗
Quarry Hollows   ✗
Other   ✗
Nothing Found   ✗

Finds

None

Interior (Finds):
No Known Finds   ✓
Pottery   ✗
Metal   ✗
Metalworking   ✗
Human Bones   ✗
Animal Bones   ✗
Lithics   ✗
Environmental   ✗
Other   ✗

Aerial

None

Interior Features (Aerial):
APs Not Checked   ✓
None   ✗
Roundhouses   ✗
Rectangular Structures   ✗
Pits   ✗
Postholes   ✗
Roads/Tracks   ✗
Other   ✗

Entrances

Gap on SW, now to c. 20m wide, could be site of original entrance.

Total Number of Breaks Through Ramparts:  
1:   None

Number of Possible Original Entrances:  
2:   Original entrance uncertain and type and position estimated.

Guard Chambers:  ✗

Chevaux de Frise:  ✗

Entrances:
1. Simple Gap (South west):   Original entrance uncertain and type and position estimated.

Enclosing Works

Roughly D-shaped measuring c.100m NE-SW by 80m and defined by single semi-circular high bank with external ditch with its straight back defined by the sea cliffs.

Enclosed Area:
Area 1:   0.7ha.
Total:   0.7ha.

Total Footprint Area:  Noneha.

Ramparts

None

Multi-period Enclosure System:
✗   None

Ramparts Form a Continuous Circuit:
✗   None

Number of Ramparts:  
NE Quadrant:   0
SE Quadrant:   1
SW Quadrant:   1
NW Quadrant:   0
Total:   1

Morphology

Current Morphology:
Partial Univallate   ✓
Univallate   ✗
Partial Bivallate   ✗
Bivallate   ✗
Partial Multivallate   ✗
Multivallate   ✗
Unknown   ✗

Detailed Morphology:
Partial Univallate   ✗
Univallate   ✗
Partial Bivallate   ✗
Bivallate   ✗
Partial Multivallate   ✗
Multivallate   ✗

Surface Evidence

None

Enclosing Works (Surface):
None   ✗
Earthen Bank   ✓
Stone Wall   ✗
Rubble   ✗
Wall-walk   ✗
Evidence of Timber   ✗
Vitrification   ✗
Other Burning   ✗
Palisade   ✗
Counter Scarp Bank   ✗
Berm   ✗
Unfinished   ✗
Other   ✗

Excavated Evidence

None

Enclosing Works (Excavation):
None   ✗
Earthen Bank   ✗
Stone Wall   ✗
Murus Duplex   ✗
Timber-framed   ✗
Timber-laced   ✗
Vitrification   ✗
Other Burning   ✗
Palisade   ✗
Counter Scarp Bank   ✗
Berm   ✗
Unfinished   ✗
No Known Excavation   ✓
Other   ✗

Other

Gang Working:
✗   None

Ditches:
✓   None

Number of Ditches:  1

Annex:
✗   None

References

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, 1.2, Pre-Norman, Parts I-III, 621, Cardiff: HMSO.

Savory, H.N. 1949. List of hill-forts in Wales, Bull Board Celtic Stud, 13, 157.



Terms of Use

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


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