Atlas of Hillforts of Britain and Ireland

SC3267 Mabonlaw, Roxburghshire

LiDAR 1m DTM Hillshade

LiDAR 1m DTM Hillshade

Satellite Imagery

Satellite Imagery

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HER:  Scottish Borders 54125 (None)

NMR:  NT 41 NE 9 (54125)

SM:  None

NGR:  NT 4572 1527

X:  345720  Y:  615270  (OSGB36)

Summary

This fort occupies a rocky hillock on the spur descending to the SE of Mabonlaw. Apparently rectangular on plan, partly reflecting the topography of the underlying hillock, it measures about 54m from NE to SW by 28m transversely within a rampart which can be traced most of the way round the margins of the hillock, only disappearing for a short sector on the SE. Traces of a rock-cut cut ditch cuts across the crest of the hillock immediately outside the rampart at the NE end, but on the SW they are separated by a berm some 3.5m wide, outside which the ditch is some 5m in breadth by 1.8m in depth. This unusual feature is particularly noticeable on the SE side of the entrance that pierces the middle of this end, but there must be some doubt as to whether the ditch, which has the appearance of a small quarry and is not matched on the other side of the entrance, is truly associated with the rampart. Indeed, the presence of an outer ditch on the SW, extending along the SE flank of the hillock as a terrace and returning across its spine beneath later rigs 20m further to the NE raises several questions about the sequence of fortification here and the character of the innermost enclosure, which is possibly a rectilinear settlement inserted into the interior of an earlier fort. The enclosure formed by the outer ditch, which has been heavily ploughed-down, is oval on plan and measures about 105m in length from NE to SW and may have enclosed as much as 0.35ha.

Status

Citizen Science:  ✗

Reliability of Data:  Confirmed

Reliability of Interpretation:  Confirmed

Location

X:  -318291  Y:  7445446  (EPSG: 3857)

Longitude:  -2.8592528130683283  Latitude:  55.42833887792099  (EPSG:4326)

Country:  Scotland

Current County or Unitary Authority:  Scottish Borders

Historic County:  Roxburghshire

Current Parish/Community/Council/Townland:  Roberton

Monument Condition

None

Condition:
Extant   ✓
Cropmark   ✗
Likely Destroyed   ✗

Land Use

None

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

None

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:  None

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

Altitude:  256.0m

Boundary

N/A


Dating Evidence

In the absence of excavation, there are neither stratified artefacts nor radiocarbon dates to provide a chronology for the defences.

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:   Partly ploughed down

Evidence:No related records

Investigation History

Photographed by RCAHMS Aerial Survey Programme in 1989

Investigations:
1st Identified Map Depiction (1858):   Annotated Fort on the 1st edition OS 25-inch map (Roxburgh 1863, sheet 25.1)
Earthwork Survey (1948):   Plan and description (RCAHMS 1956, 391, no.860, fig 497; RCAHMS RXD 185/1-2)
Other (1965):   Resurveyed at 1:2500 by the OS

Interior Features

Apparently ploughed and featureless apart from a rocky axial spine on its SE side

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

NO APPARENT FEATURES

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

Entrances

See main summary

Total Number of Breaks Through Ramparts:  
1:   None

Number of Possible Original Entrances:  
2:   None

Guard Chambers:  ✗

Chevaux de Frise:  ✗

Entrances:
1. Simple Gap (South west):   None

Enclosing Works

At least one rampart and ditch, but oblique aerial photographs reveal traces of a ploughed-down outer circuit

Enclosed Area:
Area 1:   0.16ha.
Total:   0.16ha.

Total Footprint Area:  Noneha.

Ramparts

None

Multi-period Enclosure System:
✗   While sequence cannot be demonstrated here without excavation, it is likely that the heavily reduced outer ditch belongs to an earlier fort, and the strictly rectangular arrangement of the inner enclosure is a later adaptation of the defences to create a rectilinear settlement enclosure.

Ramparts Form a Continuous Circuit:
✗   None

Number of Ramparts:  
NE Quadrant:   2
SE Quadrant:   1
SW Quadrant:   2
NW Quadrant:   1
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:
✓   Probably representing separate phases of enclosure

Number of Ditches:  2

Annex:
✗   None

References

RCAHMS (1956) The Royal Commission on the Ancient and Historical Monuments of Scotland. An inventory of the ancient and historical monuments of Roxburghshire: with the fourteenth report of the Commission, 2v. HMSO: Edinburgh



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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