Atlas of Hillforts of Britain and Ireland

IOM4201 Borrane Creglea, Glenfaba (Borrane Promontory Fort, Niarbyl)

Satellite Imagery

Satellite Imagery

HER:  Isle of Man 999 (None)

NMR:  None (None)

SM:  None

NGR:  SC 2116 7802

X:  221165  Y:  478039  (OSGB36)

Summary

Small coastal promontory fort located on W-facing promontory just N of Elby Point and Niarbyl island. Dalby Point to N. On W coast of island. Along coast to SW of Borrane Ballelby (Atlas No 4202).Steep slopes fall to rocks and sea below on N, S and W sides. Triangular shape measuring c. 15m E-W by 25m N-S. Ramparts on landward E. Raised interior has low, curving, defining bank running along E and N sides, further defined by substantial ditch and additional rampart on E, with the outer bank swinging round to W on the S side. Now very eroded, especially inner bank, and affected by field boundary on E. Possible original entrance visible as c. 3m wide gap in banks. Norse-type longhouse thought in interior (not visible) and typology suggests reoccupation of earlier Iron Age fort in 5th or 6th century AD, simlar to Cass ny Hawin (Atlas No 3343 ), Cronk ny Merriu (Atlas No 3224 ) and Close ny chollagh (Atlas No 3223) small coastal promontory forts. Grassy interior, overgrown in part. Minimal investigations, undated. On 1st Ed. OS map (1869).

Status

Citizen Science:  ✗

Reliability of Data:  Confirmed

Reliability of Interpretation:  Confirmed

Location

X:  -527767  Y:  7201832  (EPSG: 3857)

Longitude:  -4.741013540747253  Latitude:  54.166916977740485  (EPSG:4326)

Country:  Isle of Man

Current County or Unitary Authority:  Glenfaba

Historic County:  Glenfaba

Current Parish/Community/Council/Townland:  Patrick

Monument Condition

Damaged. Banks gone in part.

Condition:
Extant   ✓
Cropmark   ✗
Likely Destroyed   ✓

Land Use

Grassy interior, overgrown in part.

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

Small coastal promontory fort located on W-facing promontory just to N of Dalby Point on W coast of island. Steep slopes fall to rocks and sea below on N, S and W sides.

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:  Promontory

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

Altitude:  15.0m

Boundary

N/A


Dating Evidence

Typology and possible longhouse suggests possible Iron Age site reoccupied in 5th or 6th century AD.

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:No related records

Investigation History

On 1st Ed. OS map (1869). Field visit University of Liverpool 2010.

Investigations:
1st Identified Map Depiction (1869):   OS map.
Other (2010):   University of Liverpool.
Other (2015):   Visited by Hillfort Study Group

Interior Features

Norse-type longhouse.

Water Source

None

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

Surface

Norse-type longhouse.

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

Possible original entrance visible as c. 3m wide gap in banks.

Total Number of Breaks Through Ramparts:  
1:   None

Number of Possible Original Entrances:  
2:   None

Guard Chambers:  ✗

Chevaux de Frise:  ✗

Entrances:
1. Simple Gap (East):   None

Enclosing Works

Defences on landward E. Raised interior has low, curving, defining bank running along E and N sides, further defined by substantial ditch and additional rampart on E, with the outer bank swinging round to W on the S side.

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:
✗   None

Number of Ramparts:  
NE Quadrant:   2
SE Quadrant:   2
SW Quadrant:   0
NW Quadrant:   0
Total:   2

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:
✓   Visible in part.

Number of Ditches:  2

Annex:
✗   None

References

Archaeological Commission 1876 MSS.

Bersu, G. 1949. A promontory fort on the shore of Ramsey Bay, Isle of Man, Antiq J, XXIX, 77-8.



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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