Atlas of Hillforts of Britain and Ireland

IOM4217 The Cashtal, Ballagawne, Garff (Caishtal)

Satellite Imagery

Satellite Imagery

HER:  Isle of Man 664 (None)

NMR:  None (None)

SM:  None

NGR:  SC42708169

X:  242700  Y:  481690  (OSGB36)

Summary

Possible, small, inland promontory fort, one of few on island, located in strong position on small, isolated, rocky hillock with flat top at c. 76m c. 800m from Garwick Bay and sea on W coast of island. Small, steep-sided, stream loops around site. No details of bank and ditch of fort, but alleged on E cutting off the small neck of land between the N and S slopes of the hill. Shown on 1st Ed. OS map (1868-94). Possible entrance on SW. On top of hill G. Bersu (1967), c. 1941, excavated rectilinear structure, possibly phased, with timber posts and raised floor. Originally thought dwelling, but later a fortified granary or defended dwelling of possible Viking or later date. Well-maintained site.

Status

Citizen Science:  ✗

Reliability of Data:  Confirmed

Reliability of Interpretation:  Unconfirmed

Location

X:  -491295  Y:  7209411  (EPSG: 3857)

Longitude:  -4.413380867977212  Latitude:  54.20675483711603  (EPSG:4326)

Country:  Isle of Man

Current County or Unitary Authority:  Garff

Historic County:  Garff

Current Parish/Community/Council/Townland:  Lonan

Monument Condition

No trace of bank and ditch. Site well-maintained with revetted/enclosed stone wall around site, with iron ladder for access.

Condition:
Extant   ✗
Cropmark   ✗
Likely Destroyed   ✓

Land Use

Wooded site.

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

Possible, small, inland promontory fort, one of few on island, located in strong position on small, isolated, rocky hillock with flat top at c. 76m c. 800m from Garwick Bay and sea on W coast of island. Small, steep-sided, stream loops around site.

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:  Hillock.

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

Altitude:  76.0m

Boundary

N/A


Dating Evidence

Possible Iron Age promontory fort, with later reoccupation by Viking or later fortified granary or dwelling.

Reliability:  C - Low

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:
Other:   Excavation of structure, though no dateable finds.

Investigation History

Shown on 1st Ed. OS map (1868-94). British Association visit 1896. Excavation 1941 (Bersu). Ordnance Survey investigation 1976. Field survey J. Woodcock 1999. Field visit University of Liverpool 2010.

Investigations:
Other (1896):   British Association visit.
Excavation (1941):   None
Other (1976):   OS investigation.
Other (1999):   Field survey 1999.
Other (2010):   Field visit University of Liverpool.
1st Identified Map Depiction (None):   None

Interior Features

Rectangular structure, with timber posts and raised floor, in interior excavated. No dateable finds.

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

Rectangular structure with timber posts and raised floor in interior.

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

No dateable finds.

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

Possible entrance on SW.

Total Number of Breaks Through Ramparts:  
None:   Not defined.

Number of Possible Original Entrances:  
2:   None

Guard Chambers:  ✗

Chevaux de Frise:  ✗

Entrances:
1. Simple Gap (South west):   Gap shown on OS map 1868-94.

Enclosing Works

No details of bank and ditch, but alleged on E cutting off the small neck of land between the N and S slopes of the hill.

Enclosed Area:
Area 1:   Noneha.
Total:   Noneha.

Total Footprint Area:  Noneha.

Ramparts

None

Multi-period Enclosure System:
✗   Area not defined.

Ramparts Form a Continuous Circuit:
✗   Probably originally on NE.

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

No evidence of bank an ditch from excavations of building.

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:
✗   Nothing visible.

Number of Ditches:  0

Annex:
✗   None

References

Bersu, G. 1967. Excavation of The Cashtal, Ballagawne, Garwick, 1941, Proc Isle of Man Nat Antiq Soc, Proc, 7.1, 89-119.

Cubbon, A. M. 1967. The Cashtal, Ballagawne, Garwick. Note on the Preparation of the Report, Proc Isle of Man Nat Antiq Soc, 7.1, 88-9.



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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