Atlas of Hillforts of Britain and Ireland

SC0324 Grennan Hill, Dumfriesshire

LiDAR 1m DTM Hillshade

LiDAR 1m DTM Hillshade

Satellite Imagery

Satellite Imagery

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HER:  Dumfries & Galloway MDG5699 (None)

NMR:  NX 89 NW 7 (65239)

SM:  6285

NGR:  NX 8254 9507

X:  282540  Y:  595070  (OSGB36)

Summary

This small fortification occupies a rocky hillock on the S spur of Grennan Hill at the top of a long slope falling away steeply on the SW down to the Scar Water about 100m below. On the NW, where the top of the hillock stands between 3.5m and 4m above the surrounding ground, the defences comprise a massive rock-cut ditch up to 11.5m in breadth by 3.5m in depth, which is accompanied by both inner and outer ramparts about 0.8m in high. On the SW, however, the scale of the defences contracts to little more than a scarp dropping down into the ditch, which itself is little more than a terrace 2m in breadth cut into the slope some 5m below the crest of the hillock. In the SE quadrant, where its line is taken up by a vertical cliff-face 5m high, there is no evidence of any additional defences. The entrance lies on the E, and is formed between the return of the ramparts around the terminal of the ditch on the N side and the rock-face extending round the SE flank; it is approached obliquely by a shallow hollowed trackway. The oval interior, which measures about 46m from NW to SE by 24m transversely (0.09ha), contains at least two possible house platforms about 5m in diameter.

Status

Citizen Science:  ✗

Reliability of Data:  Confirmed

Reliability of Interpretation:  Confirmed

Location

X:  -428435  Y:  7407773  (EPSG: 3857)

Longitude:  -3.8486985778225233  Latitude:  55.235839573867  (EPSG:4326)

Country:  Scotland

Current County or Unitary Authority:  Dumfries & Galloway

Historic County:  Dumfriesshire

Current Parish/Community/Council/Townland:  Penpont

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:  185.0m

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:   None

Evidence:No related records

Investigation History

First noted by Alexander Curle in 1913 during the preparation of the County Inventory for Dumfriesshire (RCAHMS 1920, 183, no.528), it was visited by the OS in 1977.

Investigations:
Other (1913):   Description (RCAHMS 1920, 183, no.528)
1st Identified Map Depiction (1956):   OS 1-inch map
Other (1977):   Surveyed at 1:10.000 by the OS
Other (1995):   Scheduled

Interior Features

While in 1913 Curle noted three slightly hollowed circular stances, the OS subsequently observed only two.

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

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. Passage-way/Corridor (North east):   Approached obliquely by slightly hollowed trackway

Enclosing Works

Combination ramparts, ditches and steep slopes

Enclosed Area:
Area 1:   0.09ha.
Total:   0.09ha.

Total Footprint Area:  Noneha.

Ramparts

None

Multi-period Enclosure System:
✗   None

Ramparts Form a Continuous Circuit:
✗   None

Number of Ramparts:  
NE Quadrant:   2
SE Quadrant:   0
SW Quadrant:   1
NW Quadrant:   2
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:
✓   None

Number of Ditches:  1

Annex:
✗   None

References

RCAHMS (1920) The Royal Commission on the Ancient and Historical Monuments and Constructions of Scotland. Seventh report with inventory of monuments and constructions in the county of Dumfries, 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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